1. Here's what you need to know. A majority of index patients were White (59.0%, 108 of 183), and 21.3% (39 of 183) were Hispanic/Latino. And in a study of 64 college football games during the 2020 season involving 1,190 athletes, researchers at Texas A&M University found zero spread of COVID during game play based on three postgame PCR tests over the course of a week likely because of the outdoor setting and short duration of close contact, experts say. You will be subject to the destination website's privacy policy when you follow the link. Heres how that might affect crucial funding, access to tests, and case counts. A computer modeling study conducted in 2021 found that certain conditionslike wind speed and direction and cool, moist ground temperaturesplay an important role in airborne transmission. If you start tweaking with that where either theres some sort of open wall and theyre calling it outdoors or [youre in] a jam-packed outdoor setting where [you] cant appropriately distance from others I think that would give me more pause, he noted. They help us to know which pages are the most and least popular and see how visitors move around the site. Being around people who are symptomatic increases the risk of transmission. She cautions that outdoor tents that dont have flaps that let air in are not that different from being indoors, as far as COVID transmission risk goes. Use of this site constitutes acceptance of our User Agreement and Privacy Policy and Cookie Statement and Your California Privacy Rights. The study authors themselves did note the limitations at play, including the controlled, lab-based setting and differences in the droplets used in the research compared to respiratory droplets, which may all impact the stability of the virus. Fifth, this investigation did not definitively distinguish between secondary and potential tertiary cases within a household. Earlier studies showed that the fewer cases of outdoor transmission almost always occurred during prolonged, close contact. Accessed February 23, 2022. Experts say outdoor transmission has always been a thingwith alpha, delta, omicron, and now BA.5. Index dates occurred during November 21, 2021February 3, 2022. Among index patients, 172 (94.0%) had a positive SARS-CoV-2 test result (confirmed COVID-19) and 11 (6.0%) had COVID-19compatible symptoms but without SARS-CoV-2 test confirmation (probable COVID-19). Serial intervals and household transmission of SARS-CoV-2 Omicron variant, South Korea, 2021. While outdoor events are safer than indoor events, theyre not 100% safe, Majumder told the news outlet. It's still going to die very quickly in the environment.". Omicron Symptoms Can Look Like AllergiesHere's How to Tell the Difference, People With Food Allergies May Have Lower Risk of COVID-19 Infection, Centers for Disease Control and Prevention, European Centre for Disease Prevention and Control. it all depends on the context, the space and the type of activity. There isnt a tried-and-true rule. DOI: http://dx.doi.org/10.15585/mmwr.mm7109e1. If they dont, they are less safe, and I certainly understand if others want to avoid them for the time beingjust as I understand if others will want to keep attending them. CNN: What about outdoors? At that time, the World . The other/multiple races category included American Indian or Alaskan Native, Native Hawaiian or other Pacific Islander, another race specified by the person not in the provided list, or multiple races. Once a saver, always a saver: Warren Buffett says generational wealth isnt what it used to be in his annual letter Its bigger than the housing crisis: An influential economist just blamed NIMBYs for American decline, and Elon Musk CA Notice at Collection and Privacy Notice, Do Not Sell/Share My Personal Information. These cookies may also be used for advertising purposes by these third parties. Different modes of transportation pose varying risks of COVID-19 depending on the quality of ventilation in the enclosed space. 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. 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. Cleaning hands at . What . Cookies used to enable you to share pages and content that you find interesting on CDC.gov through third party social networking and other websites. CNN: What should people consider when deciding what precautions they want to bring back, like canceling restaurant reservations or masking up indoors? Centers for Disease Control and Prevention. Roberts stressed that COVID spread outdoors is much less common than spread indoors, but nothing is perfect. https://www.medrxiv.org/content/10.1101/2021.12.27.21268278v1, https://www.medrxiv.org/content/10.1101/2022.01.09.22268984v1, https://www.medrxiv.org/content/10.1101/2021.08.16.21262121v2. When search suggestions are available use up and down arrows to review and enter to select. FDA Grants Emergency Use Authorization for Novavax's COVID-19 Vaccine. To Patel, for small group settings to be safe, people cant be shouting (COVID spreads more when people are singing or yelling), you must be able to maintain some distance from others, and everyone should be following public health measures like hand-washing. Masking in those environments, distancing, and vaccination are still effective preventative tools for us to utilize, Dr. Rohde says. Alleged COVID . Klicken Sie auf Einstellungen verwalten um weitere Informationen zu erhalten und Ihre Einstellungen zu verwalten. 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. The original Wuhan strain of COVID-19 had a reproductive ratealso known as an R0 or R-naught valueof around 3.3, meaning that each infected person infected another 3.3 people, on average. 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. Should you get your second booster shot now? More information is available, Travel requirements to enter the United States are changing, starting November 8, 2021. She is also a host and contributing editor for Harvard Health Publications (HHP), the publishing division of Harvard Medical School. Arinjay Banerjee, a virologist working with the University of Saskatchewan's Vaccine and Infectious Disease Organization, echoed that. 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. 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. The 15-minute rule no longer applies. But that doesn't mean that being outdoors isn't going to. Fresh air disperses and dilutes the virus. The material on this site may not be reproduced, distributed, transmitted, cached or otherwise used, except with the prior written permission of Cond Nast. We conducted a test-negative case-control study and recruited the test-positive cases and test-negative controls in the outbreak caused by . Will BA.2 Cause Another COVID Wave in the U.S.? It is a lot more contagious, so you could be in an outdoor setting and if you are close to someone who isn t wearing a mask and you re not wearing a mask, you . "Most people that get it outdoors are still getting into groups with friends, neighbors and family when outdoors and that is a good way to spread infection when it is present," he said. Right now were waiting on additional data to confirm that COVID transmission is occurring outdoors.. US Travel Association. The emergence of BA.5 and other highly contagious omicron subvariants is definitely concerning, experts said. ** 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). 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. Lane . Index patients and household contacts participated in voluntary telephone interviews to retrospectively collect information on demographic characteristics, SARS-CoV-2 testing, symptoms, COVID-19 vaccination history, previous SARS-CoV-2 infection, index patient isolation practices (defined as always or sometimes isolating in a room by oneself at any point during their potentially infectious period), and index patient mask use practices (defined as ever wearing a mask at home during their potentially infectious period). 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. part 46.102(l)(2), 21 C.F.R. 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. "It is more transmissible than other previous variants because it can evade previous immunity from COVID infection and vaccination.". If your own risk tolerance is low, certain outdoor situations could call for masking up. Greater COVID transmissibility due to Omicron variants means greater . Use of this site constitutes acceptance of our Terms of Use and Privacy Policy | CA Notice at Collection and Privacy Notice| Do Not Sell/Share My Personal Information| Ad Choices The AR was lower among household contacts of index patients who reported ever wearing a mask at home during their potentially infectious period (39.5%, 88 of 223) compared with household contacts of index patients who reported never wearing a mask at home during this period (68.9%, 124 of 180, p-value<0.01). cases are rising modestly in the Northeast, Philadelphia has reinstituted an indoor mask mandate, BA.2 is a subvariant of the Omicron variant. Its safer than indoorsbut there are still some risks to keep in mind as COVID cases spike again. The more crowded an outdoors space is, the more it begins to mimic an indoor space in terms of our exposure to shared air.. Yes, you can get BA.5 outdoors, but you could also contract other COVID variants outside, says Thomas Russo, M.D., professor and chief of infectious disease at the University at Buffalo in New. While outdoor transmission of COVID-19 in low-risk settings is "generally uncommon," Dr. Adalja says that it's . On Twitter: @milepostmedia. These are all reasonable decisions depending on how you think about your own risk. The outdoors have always been a sanctuaryeven more so since the advent of the pandemic. (The other layers are vaccination, masks and physical distancing.). You could decide to remove your mask when sitting at your desk, but put it on again to go into a crowded elevator or a conference room where youre sitting shoulder-to-shoulder with other people. BA.5's mutations have also allowed it to sneak past the body's immune system more easily. and/or the original MMWR paper copy for printable versions of official text, figures, and tables. 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. The SARS-CoV-2 B.1.1.529 (Omicron) variant contributed to a surge of SARS-CoV-2 infections in the United States during December 2021January 2022. Requiring face coverings in outdoor school settings is now a local decision. Sie knnen Ihre Einstellungen jederzeit ndern. 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. 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. For others, a restaurant with an open wall is outdoors. (Photo by Scott Olson/Getty Images), A young woman and man stand next to each other. 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. As the United States navigates a third year of the Covid-19 pandemic, cases are rising modestly in the Northeast, Philadelphia has reinstituted an indoor mask mandate and some colleges are requiring masks during the final days of the spring semester. If an outdoor event is crowded, especially with singing or yellingperhaps a concert or protestmasking is a good idea, she advised. Were hearing anecdotal reports of people testing positive who think they got it outdoors, said Dr. Scott Roberts, associate medical director of Infection Prevention at Yale New Haven Hospital. Household contact ARs ranged from a low of 47.5% (19 of 40) when the index patient was aged 511 years to a high of 72.0% (18 of 25) when the index patient was aged 04 years. "Certainly I don't want to see people going back to wiping their groceries down with disinfectants and leaving things sitting for days on end in the hope that what virus might be there isn't going to infect them. Sunlight and humidity, for instance, can both contribute to how long viruses are able to survive on surfaces outdoors, he noted. We are in the midst of another COVID-19 wave driven by the highly contagious BA.4 and BA.5 variants, which have a mutation in the spike protein of the coronavirus that causes these variants to more easily attach to (and infect) people. The first is arming yourself with information about community levels in the area to which you're traveling; the CDC's community levels tracker can give you county-by-county information on hospital admissions and COVID-19 case counts. These cookies allow us to count visits and traffic sources so we can measure and improve the performance of our site. The key is really just ensuring that theres adequate distancing, particularly if youre in a situation where someone sneezes or coughs within a few feet of you, Roberts emphasized. Spreading COVID outside was possible, but not probable, experts advised in 2020, urging cooped-up citizens to turn to Mother Nature as an antidote to the isolation of lockdowns. If you need to go back and make any changes, you can always do so by going to our Privacy Policy page. Song JS, Lee J, Kim M, et al. The COVID Public Health Emergency Is Ending Soon. Then came Omicron, with an reproductive rate almost twice as large: 9.5. 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