After severe or even mild COVID-19 illness, some people continue to suffer from symptoms for weeks and months after their initial recovery. These people may be considered “long haulers” with post-COVID-19 syndrome.
Under detection and underreporting are problematic for a variety of reasons. They make it more difficult to understand the true spread of the virus, which impacts everything from resource planning in healthcare systems to public policies designed to reduce infection spread.
Releasing a vaccine to the public where it can make a positive impact on public health and individual lives is a complex process. Quality control testing is critical at every stage, from initial development to full-scale production, to make sure vaccines are as safe as possible.