Guest post by Felicia Briones-Colman, MD On average, adults catch between 2- 4 colds a year, kids up to 6 – 10 colds a year. Infection is two-fold:  viral exposure and failure of the immune system to destroy invading microorganisms.  Viral exposure is limited by hand washing and by avoiding ill contacts.  But what can … Continue reading Immunity power boosters that prevent colds and flu