Viral vs. Bacterial Infections: How to Tell the Difference
Viruses are significantly smaller and do not exist in the form of cells. In contrast to bacteria, they require a host, such as a human or animal, to reproduce. Viruses infect the body by infiltrating and replicating inside healthy cells.
Because viral and bacterial infections can create similar symptoms, determining the source of an illness can be challenging. To determine the type of illness you have, your doctor may want a sample of your urine, faeces, or blood, as well as a swab from your nose or throat.