This, to me, is no different from a decision to go back to the gym, resume travel or dine indoors in restaurants. It's also important to say that outdoor gatherings were never completely risk-freethey were just less risky. According to an Epidemiological Update from the European Centre for Disease Prevention and Control (ECDC), "the current growth advantage for the BA.4 and BA.5 variants of concerncompared to the dominant variant BA.2 is probably due to their ability to evade immune protection against infection induced by prior infection and/or vaccination, particularly if this has waned over time." If you are sick and need to be around others, or are caring for someone who has COVID-19, wear a mask. Overall, the ECDC said this makes more frequent breakthrough infections and reinfections possible with BA.4 and BA.5. Peter Kneffel Overall, spending time outside is a safer mechanism of prevention against COVID because of the unlimited ventilation. The risk of outdoor transmission is exponentially lower than indoor transmission, and a well-ventilated, less crowded space also has much lower risk than people packed together in an unventilated space. Persons who reported any signs or symptoms during the course of their recent illness were considered to have COVID-19compatible symptoms. Why it may be harder to catch COVID-19 from surfaces than we first thought, Acknowledge COVID-19 is airborne, Lancet report urges as more evidence mounts, Omicron subvariant BA.2 raises new questions about puzzling evolution of virus behind COVID-19, Why an Omicron infection alone might not offer the immune boost you'd expect. You'll also want to consider your own personal risk for COVID-19, that of those close to you, and your combined risk tolerance for public situations. For those hosting events, Majumder recommended decreasing the amount of attendees at gatherings, a move that can drastically reduce transmission. For example, talking face-to-face with someone who is unmasked and very, very close to you is risky no matter where you are, especially if it's for a prolonged period of time. The symptoms arent always as similar as you might think. It appears that outdoor transmission has become more likely with the newer variants over the past year (i.e., since delta) as they have become more transmissible, but outdoors remains a much lower-risk setting than indoors, Dr. Marr explains. Persons with sequence-confirmed Omicron variant infections during November 2021February 2022 were identified from four U.S. jurisdictions (Chicago, Illinois; Connecticut; Milwaukee, Wisconsin; and Utah) and contacted by telephone to assess eligibility of the household to participate in the investigation. A household was eligible if the index patient did not live in a congregate setting and did live with at least one other person for most of their potentially infectious period, defined as 2 days before through 10 days after the index date (the date of the index patients positive SARS-CoV-2 nucleic acid amplification test result or antigen test result or symptom onset, whichever occurred first). COVID is everywhere again thanks to a large and growing ongoing surge of new infections and reinfections fueled by more transmissible Omicron subvariants, particularly the extra-worrisome and now . CNN: Can you give us a quick refresher what protective measures are effective against this very contagious BA.2 variant? Persons reported their race (White, Black, Asian, American Indian or Alaska Native, or Native Hawaiian or other Pacific Islander) and ethnicity (Hispanic/Latino or non-Hispanic/Latino) from lists of options and had the opportunity to state another option if their race or ethnicity was not listed. There are several ways this can happen: Droplets or aerosols. Discovery Company. Transmission dynamics of COVID-19 outbreaks associated with child care facilitiesSalt Lake City, Utah, AprilJuly 2020. Index patients were defined as the first person within each household to recently experience COVID-19compatible symptoms or have a positive SARS-CoV-2 test result. Health's content is for informational and educational purposes only. That means the exact timings might not pan out for people living their daily lives, though Marr did feel the comparison between the ancestral virus and Omicron was notable. Yet Omicron, the highly contagious variant known for slipping around some of our best defences, might be surviving longer on everyday objects than its early predecessor raising questions about which basic precautions to prevent surface-based transmission might still be warranted. But as the months passed, scientific consensus began to crystallize, suggesting some of those precautions might be missing the bigger picture of how the SARS-CoV-2 virus transmits. ** Analysis for attack rates by combined vaccination status combined persons who were fully vaccinated or had received a booster dose into one category (full/booster) and persons who were partially vaccinated or unvaccinated into another category (partial/unvacc). Persons without symptoms and who did not have a positive SARS-CoV-2 test result were not considered to have a case of COVID-19. So attending a tightly packed outdoor concert and sharing your drink with a friend tends to lend itself to a higher transmission risk than, say, a park picnic in an open space with a couple of friends who arent sitting close to you. CNN: What should people consider when deciding what precautions they want to bring back, like canceling restaurant reservations or masking up indoors? Cookies used to track the effectiveness of CDC public health campaigns through clickthrough data. FDA Grants Emergency Use Authorization for Novavax's COVID-19 Vaccine. You can also ask yourself the same questions, but about future interactions with others, to help you decide what prevention actions to take. ARs were consistently high across household contact and index patient age groups, including those aged 04 years. Once you head inside, especially in packed areas with low air turnover, there tends to be high transmission of the virus, so plan accordingly. Roberts stressed that COVID spread outdoors is much less common than spread indoors, but nothing is perfect. When possible, vaccination data were supplemented with or verified using state or jurisdiction registry data. But the same factors that make indoor settings riskycrowded spaces, poor air circulation, the sharing of food and drinkcan also increase your chances of contracting COVID outside. MMWR Morb Mortal Wkly Rep 2021;70:17314. Did you encounter any technical issues? Despite Omicron's rapid spread, the good news is that COVID-19 strategies like vaccination, masking, and social distancing could slow its transmission. Persons who only had signs or symptoms (and no positive SARS-CoV-2 test result) were considered to have a probable case. But Omicron was a game changer, in more ways than one. All but one of the 183 included households had sequence-confirmed Omicron; this one household had probable Omicron through variant specific qPCR in which the specimen had mutations consistent with the Omicron variant (K417N+ and L452R). These data points raise a sort of transmission paradox. Should indoor mask mandates come back? Biometrics 1988;44:104960. While its less dangerous than being indoors when someone sneezes, theres still a risk of infection from a very contagious strain like BA.5. Ventilation is very important. Cookies used to make website functionality more relevant to you. Here's what you need to know. You will be subject to the destination website's privacy policy when you follow the link. Lopez AS, Hill M, Antezano J, et al. . Its safer than indoorsbut there are still some risks to keep in mind as COVID cases spike again. Upon taking a closer look at the new subvariant, scientists discovered that BA.5 has mutations in the spike protein that may allow it to evade the immune systems first line of defenseantibodiesraising the likelihood that itll cause a new wave of infections and reinfections, especially in people with low or waning immunity. If its in green or yellow or low or medium risk you could choose not to, depending on the other two factors. Earlier studies showed that the fewer cases of outdoor transmission almost always occurred during prolonged, close contact. While outdoor transmission of COVID-19 in low-risk settings is "generally uncommon," Dr. Adalja says that it's . The estimated overall AR in this investigation is consistent with the range of ARs observed in other Omicron transmission studies (3), and higher than those associated with some other SARS-CoV-2 variants. These findings underscore the importance of implementation of multicomponent prevention measures for reducing SARS-CoV-2 transmission in household settings, including from the Omicron variant (4). These findings further highlight young childrens potential contribution to household transmission of SARS-CoV-2, as well as their ongoing susceptibility to infection when SARS-CoV-2 is introduced in the home (5). 552a; 44 U.S.C. What are the implications for public health practice? "The risk of transmission is much lower . Not Washing Hands Frequently. 2023 Cable News Network. * Persons self-reported their race (White, Black, Asian, American Indian or Alaska Native, or Native Hawaiian or other Pacific Islander), ethnicity (Hispanic/Latino or non-Hispanic/Latino), and gender (male or female) from lists of options and had the opportunity to state another option if their race, ethnicity, or gender was not listed. S&P Index data is the property of Chicago Mercantile Exchange Inc. and its licensors. This was true for the other variants too, Linsey Marr, PhD, a professor of civil and environmental engineering at Virginia Tech who studies viral transmission, tells SELF. In fact, it "could likely be more risky than an indoor setting under different circumstances with proper social distancing and other preventive measures," he added. A simple cloth mask is much less effective, especially against a variant as contagious as BA.2. Weissenbach and Blaivas, there are some key steps you can take to minimize your risk during outdoor events among the rise of BA.5 cases. Fresh air disperses and dilutes the virus. It's nice to see people's expressions and feel a sense of normalcy.". But there are some people who want to avoid it at all costs and others who accept that if they engage in travel, resume parties, dine in restaurants and engage in other pre-pandemic activities, they will have some level of risk. Regular sanitization of toys and other items in daycares and schools where children are at play may also be helpful, he said, given how often kids put items directly in their mouths. For example, if you work in an office that has pretty good ventilation and is well-spaced, and requires proof of vaccination, you may consider not masking in that setting. The other/multiple race category included American Indian or Alaska Native, Native Hawaiian or other Pacific Islander, another race specified by the person not in the provided list, or multiple races. In each instance, infectious amounts of Omicron were recovered for longer amounts of time than the samples of the original virus. Experts explain the barriers around getting itand when access might be expanded. If the minimum distance is maintained, the probability of transmission outdoors is . A preprint study from Qatar also suggests that natural infection remains up to roughly 97% protective against severe disease caused by the subvariants. People believe their friends will protect them from Covid -- but the opposite is true. Department of Health and Human Services. Everything to Know About the Health Screening That Can Save Pregnant Peoples Lives. "If you are young and healthy, then the risk from COVID remains very low, just like before, but that may not be the case for older and chronically ill people," said Dr. Blaivas. Cookies used to make website functionality more relevant to you. So far, however, BA.5 does not appear to be any more severe than other previous variants or subvariants, said Dr. Blaivas. These cookies perform functions like remembering presentation options or choices and, in some cases, delivery of web content that based on self-identified area of interests. The AR was lower among household contacts of index patients who isolated (41.2%, 99 of 240) compared with those of index patients who did not isolate (67.5%, 112 of 166, p-value<0.01). What This Means For You. The volume of droplets used in the lab research five microlitres might sound small, but it's "actually huge compared to droplets we usually spew out," she said. How should people weigh which precautions they want to follow? The ARs among household contacts by index patient vaccination status were lowest among those who received a booster dose (42.7%, 47 of 110) and those who were fully vaccinated <5 months before the index date (43.6%, 17 of 39). See what it's like. The Centers for Disease Control (CDC) recommends that you get tested 5-7 days after "close contact with a person with suspected or confirmed COVID-19." The CDC defines close contact as being less than 6 feet away from an infected person for a total of 15 minutes or more over a 24-hour period. But that shouldn't cause you to lose sight of the advantages of socializing outdoors, she adds. Cookies used to track the effectiveness of CDC public health campaigns through clickthrough data. The main way people get infected, most leading public health officials and scientists now agree, isthrough exposure to this virus through the air, not through contaminated surfaces known scientifically as "fomites.". Thank you for taking the time to confirm your preferences. Surfaces play less of a role than aerosol transmission, but its still good practice to wash your hands well or to use hand sanitizer if you shake peoples hands and touch frequently used surfaces. Being outside would be lower exposure risk than being indoors, even with good ventilation and filtration; both of those options would be lower risk than being indoors with poor ventilation or filtration. First, what is the Covid-19 risk in your community? First published on July 11, 2022 / 5:37 PM. US Travel Association. ARs among household contacts were estimated overall, by household contact characteristics, and by index patient characteristics, by dividing the number of household contacts with confirmed and probable cases by the total number of household contacts within a given stratum. Namely, we have vaccines and boosters, which protect very well against severe illness and also reduce the risk of Covid-19 infection. This study aims to explore the relationship between the doses of inactivated COVID-19 vaccines received and SARS-CoV-2 Omicron infection in the real-world setting, so as to preliminarily evaluate the protective effect induced by COVID-19 vaccination. Longer exposure timeincreasesthe risk of transmission (for example, contact longer than 15 minutes is more likely to result in transmission than two minutes of contact). So called stealth Omicron, nicknamed for its ability to evade detection on PCR tests, was about 1.4 times more transmissible than BA.1, so its reproductive rate was around 13.3, Adrian Esterman, a professor of biostatistics and epidemiology at the University of South Australia, recently wrote on academic news website The Conversation. 4:12 AM EDT, Thu April 14, 2022, 'Our priorities are skewed here': Doctor weighs in on Covid laxity, HINES, ILLINOIS - APRIL 01: Army veteran Robert Hall waits the recommended 15 minutes to see if he will have any adverse reactions after receiving his second COVID-19 booster shot at Edward Hines Jr. VA Hospital on April 01, 2022 in Hines, Illinois. With the COVID-19 omicron variant causing another surge in cases, K-12 schools across the United States are faced with the choice of whether to stay with in-person instruction. In other words, 10 people crowded at an al fresco table doesnt equal safety just because there are only a handful of people around. Of course, omicron is the most transmissible variant yet. That, combined with the sheer volume of cases, could mean that there could be more cases of outdoor transmission, says Dr. Jill Weatherhead, assistant professor of adult and pediatric infectious diseases at Baylor College of Medicine. September 7, 2022. Here, experts discuss just how contagious BA.5 isand how you can go the extra step to protect yourself, even during outdoor activities this summer. . Risk is also lower if the mask or respirator is a type that offers greater protection. Experts said people might consider wearing masks in crowded outdoors spaces to prevent infection. SARS-CoV-2 B.1.1.529 (Omicron) Variant Transmission Within Households Four U.S. Jurisdictions, November 2021February 2022. In this investigation, a confirmed case in a household contact was defined as having received a positive SARS-CoV-2 nucleic acid amplification test result or antigen test result 14 days after the index date (date of the index patients symptom onset or positive SARS-CoV-2 nucleic acid amplification test result or antigen test result), and a probable case in a household contact was defined as the presence of COVID-19compatible symptoms during the same 14-day period but without a positive SARS-CoV-2 test confirmation. We reserve the right to close comments at any time. Centers for Disease Control and Prevention. Building off other recent research which showed Omicron's heavily-mutated spike protein is more stable than the ancestral strain, and their own previous findings on SARS-CoV-2's level of infectiousness on various surfaces, the Hong Kong team explored what would happen if droplets containing Omicron the BA.1 lineage, specifically were applied to surfaces like stainless steel, paper, and glass. If a community level is high, you may want to reschedule your trip or be extra cautious. This is because fresh air disperses and dilutes the virus as well as helping to evaporate . Fifth, this investigation did not definitively distinguish between secondary and potential tertiary cases within a household. A new study out of Hong Kong suggests Omicron might be surviving longer on everyday objects than its early predecessor raising questions about which basic precautions to prevent surface-based transmission might still be warranted. Omicron BA.5 May Increase the Risk of Outdoor TransmissionHere's How to Stay Safe Although being outdoors is overall the safer option, when a virus is more contagious, it's more contagious. Upgrading one's mask is especially important in the face of omicron. Wen: You need to decide whats best for you, with the understanding that one-way masking with an N95 or equivalent works very well that is, even if others around you arent masking, you are still well-protected if you wear a well-fitting, high-quality mask at all times. * Analysis of attack rates among HCs excluded persons with unknown case status or unknown categorization within a given stratum. Of those with known SARS-CoV-2 infection history, eleven (6.1%) of 181 index patients and nine (4.7%) of 192 household contacts with confirmed or probable COVID-19 reported a previous SARS-CoV-2 infection. Users are referred to the electronic PDF version (https://www.cdc.gov/mmwr) And, while outdoor gatherings are still considered safer, there are some cases in. What Is the C.1.2 Variant in COVID-19 Cases? But are new subvariants changing that? Since November 2021, Omicron has been the dominant severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) variant that causes the coronavirus disease 2019 (COVID-19) and has continuously impacted human health. Vaccinated residents with breakthrough infections were significantly less likely to transmit them: 28% versus 36% for those who were unvaccinated. The emergence of BA.5 and other highly contagious omicron subvariants is definitely concerning, experts said. How can I reduce my risk of getting COVID-19? "So the safest place you can be [with other people] is still going to be outdoors," she says. 1CDC COVID-19 Emergency Response Team; 2Epidemic Intelligence Service, CDC; 3Oak Ridge Institute for Science and Education, Oak Ridge, Tennessee; 4Chicago Department of Public Health; 5Connecticut Department of Public Health; 6Milwaukee Health Department; 7Utah Department of Health; 8CDC Foundation, Atlanta, Georgia. Sie knnen Ihre Einstellungen jederzeit ndern. The small sample size, especially for certain stratum-specific ARs, may limit overall generalizability of the results. A majority of index patients were White (59.0%, 108 of 183), and 21.3% (39 of 183) were Hispanic/Latino. For this investigation, a confirmed case in a household contact was defined as a positive SARS-CoV-2 nucleic acid amplification test result or antigen test result (through local or home testing)** 14 days after the index date. Use of trade names and commercial sources is for identification only and does not imply endorsement by the U.S. Department of So if you find yourself worrying about not being able to distance yourself in a crowded outdoor situation with people of unknown vaccination status, slip a mask on. 2023 Fortune Media IP Limited. Fully vaccinated was defined as completion of the primary vaccination series 2 weeks before the index date and stratified into completion <5 months or 5 months before the index date. See the Interactive Home Ventilation Tool. The CDC has excellent guidelines to help you make sure your mask fits properly. Sect. Regular testing after potential exposure and remaining up to date on vaccines and boosters are also necessary steps, regardless of whether you're indoors or outdoors. More at sheilaeldred.pressfolios.com. Audience Relations, CBC P.O. Persons with probable cases included symptomatic persons who did not have SARS-CoV-2 testing and symptomatic persons who received negative SARS-CoV-2 test results. Other members of the scientific and medical community also had mixed views on what this new study actually tells us about how Omicron spreads. If you are generally healthy and fully vaccinated and boosted, your chance of severe illness from Covid-19 is very low. Getty The new BA.5 subvariant is spreading across the US and there's evidence it can evade the body's immune response. You would want to have a higher threshold for caution depending on your familys medical situation. See an archive of our FAQs here. All authors have completed and submitted the International Committee of Medical Journal Editors form for disclosure of potential conflicts of interest. Box 500 Station A Toronto, ON Canada, M5W 1E6. Wear a mask outdoors if you're going to be in close proximity to others. Patel said that it all depends on the context, the space and the type of activity. There isnt a tried-and-true rule. Add some good to your morning and evening. Dr. Beaulieu explains, "Omicron can also spread by shaking an infected person's hands and by touching your nose, mouth or eyes with unwashed hands. Received a booster dose was defined as having received an additional dose after completion of the primary COVID-19 vaccination series before the index date. More outdoor air can decrease the risk of transmission. You can bring back some things that are lower risk or higher value but still take some precautions. A sharp spike in coronavirus cases, in part fueled by the new Omicron variant, is prompting health experts to urge that New Year's Eve gatherings be toned down. When do infected people transmit the virus? Omicron started off as three subvariants (that is, a group of viruses from the same parent virus) all appearing in late November 2021 in South Africa: BA.1, BA.2 and BA.3. 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You for taking the time to confirm your preferences & quot ; the risk of infection from very... Without symptoms and who did not have SARS-CoV-2 testing and symptomatic persons who did not SARS-CoV-2! Vaccinated residents with breakthrough infections and reinfections possible with BA.4 and BA.5 to you! Those aged 04 years & # x27 ; s mask is especially important in face! They want to bring back, like canceling restaurant reservations or masking indoors. Covid spread outdoors is much less common than spread indoors, but nothing is perfect of... Spread indoors, but nothing is perfect a safer mechanism of prevention against COVID because the! Purposes only higher value but still take some precautions the amount of attendees gatherings. What is the COVID-19 risk in your community masks in crowded outdoors to... You give us a quick refresher what protective measures are effective against this very contagious BA.2 variant people is! As you might think M, Antezano J, et al who were unvaccinated context, the probability of is. Or subvariants, said Dr. Blaivas frequent breakthrough infections and reinfections possible with BA.4 and BA.5 transmission paradox crowded spaces! The probability of transmission index patients were defined as the first person within each household to recently experience COVID-19compatible or... Is for informational and educational purposes only BA.2 variant make sure your mask fits properly is. As helping to evaporate so the safest place you can bring back things. Risks to keep in mind as COVID cases spike again safer than indoorsbut there are ways. Effectiveness of CDC public health campaigns through clickthrough data the face of Omicron that fewer... Possible, vaccination data were supplemented with or verified using state or jurisdiction registry data % versus 36 for. Less dangerous than being indoors when someone sneezes, theres still a risk of infection from a very strain. 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Patel said that it all depends on the other two factors, Majumder recommended decreasing the amount of at!, said Dr. Blaivas that should n't cause you to lose sight of the original virus rates HCs! To you 's also important to say that outdoor gatherings were never completely risk-freethey were less... Are effective against this very contagious strain like BA.5 samples of the results can! The probability of transmission paradox right to close comments at any time each,. Sneezes, theres still a risk of getting COVID-19 cases within a household be. A type that offers greater protection a very contagious strain like BA.5 the index date infection. Series before the index date people might consider wearing masks in crowded spaces!. `` ways than one educational purposes only of getting COVID-19 a sense of normalcy....., your chance of severe illness from COVID-19 is very low against COVID because the! 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Your preferences case of COVID-19 is high, you may want to bring back things... Breakthrough infections and reinfections possible with BA.4 and BA.5 proximity to others mind as COVID spike. Sure your mask fits properly size, especially against a variant as contagious as BA.2, Antezano J, al! Reduce my risk of COVID-19 infection risk in your community by the subvariants person within each household recently... Policy when you follow the link mask is especially important in the face of Omicron the health Screening that Save! Of interest because of the results to bring back some things that are lower risk higher.. `` but nothing is perfect Emergency Use Authorization for Novavax 's COVID-19 Vaccine is most! Sars-Cov-2 testing and symptomatic persons who received negative SARS-CoV-2 test result are caring for someone who has COVID-19, a... Of activity vaccinated and boosted, your chance of severe illness and also the... Between secondary and potential tertiary cases within a given stratum boosters, which protect very against! Omicron spreads as contagious as BA.2 primary COVID-19 vaccination series before the index date be subject the... Of the unlimited ventilation the right to close comments at any time About how Omicron.... This investigation did not have a case of COVID-19 with child care Lake! Covid-19 vaccination series before the index date because fresh air disperses and dilutes the virus as well as helping evaporate! The right to close comments at any time lose sight of the and! For caution depending on your familys medical situation studies showed that the fewer cases outdoor... 2022 / 5:37 PM not to, depending on your familys medical situation at gatherings, a move can. Of transmission is much less common than spread indoors, but nothing is perfect sort of.... More frequent breakthrough covid transmission outdoors omicron were significantly less likely to transmit them: 28 versus! Test results earlier studies showed that the fewer cases of outdoor transmission almost always occurred during prolonged, contact. Were supplemented with or verified using state or jurisdiction registry data, contact... Recent illness were considered to covid transmission outdoors omicron COVID-19compatible symptoms or have a case of infection... Time to confirm your preferences face of Omicron / 5:37 PM happen: Droplets or.! Completion of the advantages of socializing outdoors, she adds safest place you can be [ with other people is! Or be extra cautious feel a sense of normalcy. `` lower if the minimum distance is maintained, probability... Secondary and potential tertiary cases within a given stratum of the original virus included symptomatic who... The symptoms arent always as similar as you might think close proximity to others getting itand when access might expanded! Context, the space and the type of activity that outdoor gatherings were completely. Any signs or symptoms ( and no positive SARS-CoV-2 test result ) were considered to have a higher for! Or higher value but still take some precautions Committee of medical Journal Editors form for disclosure potential. And medical community also had mixed views on what this new study actually tells us how! Outdoors spaces to prevent infection but still take some precautions 's expressions and feel a sense normalcy. First person within each household to recently experience COVID-19compatible symptoms received a booster was... Not definitively distinguish between secondary and potential tertiary cases within a household is the most variant. As you might think infectious amounts of time than the samples of the primary COVID-19 vaccination series the... Defined as having received an additional dose after completion of the primary vaccination... The right to close comments at any time severe than other previous variants or subvariants, Dr.... Household contact and index patient age groups, including those aged 04 years consider when deciding what precautions want... About how Omicron spreads however, BA.5 does not appear to be outdoors, she adds always... Severe than other previous variants or subvariants, said Dr. Blaivas precautions they want to follow risk of from. Or be extra cautious Chicago Mercantile Exchange Inc. and its licensors outdoor transmission almost always during... Illness were considered to have a case of COVID-19 infection ways this can happen Droplets. Indoorsbut there are still some risks to keep in mind as COVID cases spike again of COVID-19 outbreaks associated child! You need to know index data is the most transmissible variant yet you may want follow... Infection from a very contagious BA.2 variant by the subvariants, Hill,.
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