To prevent the spread of viruses and infections, it’s important to know how they work. Most viruses are caused by microscopic organisms which enter the body and start multiplying. Infected individuals can then pass these organisms to other people in several ways, including person-to-person contact and through the dispersion of contaminated respiratory droplets. As in the case of COVID-19, highly contagious viruses can spiral out of control quickly, so it’s crucial to take preventative measures seriously. This article covers the...