What we call the flu also includes a wide variety of viral illnesses better known as the common cold, which includes some coronaviruses - the flu shots offer no

What we call the flu also includes a wide variety of viral illnesses better known as the common cold, which includes some coronaviruses - the flu shots offer no protection against most of these different viruses What medical practitioners call the flu is a small subset of influenza viruses common in humans, each with a high potential for reinfection, including reinfections within a year (as well as constantly evolving variant strains, just like COVID)