49% OF COVID INFECTIONS ARE ASYMPTOMATIC, which means you may not know if you are actually sick. This is why it's important to take a multilayered approach (one or more of the following) to protect yourselves and others: N95 and KN95 masks HEPA air filtration Good ventilation (carbon dioxide <800 parts per million) Up-to-date vaccinations Rapid tests before gathering Attention to wastewater levels of COVID-19 Yale SCHOOL OF PUBLIC HEALtH Sources: The Lancet Regional Health, CDC
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