CDC: ... "It′s a long-documented medical fact."
As it is a fact that many times viral flu infection became after few days a mixed one, with an secondary bacterial infection (throat/...) which in many chronic patients can spread further (sinus/bronch./lungs) and need an timely (into 4-5 days of flu onset) antibiotic therapy.
As it is a fact that many times viral flu infection became after few days a mixed one, with an secondary bacterial infection (throat/...) which in many chronic patients can spread further (sinus/bronch./lungs) and need an timely (into 4-5 days of flu onset) antibiotic therapy.