1/11/2024 0 Comments Stack the states liveHow do COVID-19 antibody tests work? (opens in new tab) Why COVID-19 kills some people and spares others (opens in new tab) After recovering from COVID-19, are you immune? (opens in new tab) Live updates on the COVID-19 pandemic (opens in new tab) On the flip side, the risk of transmission does seem to be lower outdoors. Efficient transmission in crowded, enclosed spaces also explains the high attack rates in nursing homes, food processing plants, jails and prisons and cruise ships. The infection risk is especially high among household contacts. There, close contact between infected people and inadequate ventilation are more likely. It’s also becoming clear the virus transmits most effectively in indoor settings. That's why the advice about self-isolation if you feel ill is so important. Taking all this together, it’s safe to say the riskiest thing you can do is to come into close contact with sick people. There is some evidence that people can transmit the virus before they have symptoms, although they will likely have the highest amount of virus (opens in new tab) close to the start of the illness. Evidence also suggests that smaller aerosol particles, spread while talking or breathing, can lead to transmission. It can certainly be transmitted by large respiratory droplets, like those produced when we cough or sneeze. How SARS-CoV-2 transmits from person to person is still a mystery. Read more: Should we wear masks or not? An expert sorts through the confusion What's associated with a high risk of transmission?
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