In most people – particularly children and young adults – COVID-19 isn’t much more dangerous than the common cold. However, in a significant number of people, especially those over 50, COVID-19 can cause serious illness and long-term complications. For some, it leads to premature death.
Because COVID-19 spreads so easily, many millions of people could become infected. Although the percentage of the population at risk of serious illness is small, that still represents hundreds of thousands of potential deaths.
COVID testing identifies anyone carrying the virus, which means they can take the appropriate steps to avoid infecting anyone else, like self-isolation. Even though many people are now vaccinated against COVID-19, the protection isn’t absolute, so they could still get sick. Therefore, testing is still important to reduce the spread of the disease.