Antibiotics are not prescribed for 'flu per se or to ward off infection (only vaccines can prevent infection). Ideally antibiotics should only be taken when there is evidence of secondary bacterial infection such as purulent sputum or bacterial infection confirmed by cultures from throat swabs or sputums. A prolonged infection might also be thought to indicate secondary infection.Originally posted by delgirl
I believe it is equally drivel to take an antibiotic for Flu, which is a viral illness, except in order to ward off secondary bacterial infection.
In an ideal world a culture and sensitivity test would indicate the appropriate narrowest spectrum antibiotic. However, cultures do not always yield positive results and in those cases the prescription of an antibiotic would be based on a clinical examination and judgement and possibly a chest Xray when indicated.
While young children are frequently subject to viral infections, thereby building up immunity, they are also susceptible to secondary bacterial infections and a clinical judgement in those cases would also apply.