Explore our corporate partner AstraZeneca's new one-stop web resource for respiratory virus knowledge and try the symptom comparator right away. It's that time of year again when coughs and colds are ubiquitous. But is it possible to have several respiratory diseases at the same time? Indeed, this phenomenon is known as coinfection although it is relatively rare due to the competition between the viruses during infection.[1-3] While infrequent, the consequences of coinfection may…