Tamiflu not much good this year

Lithium was used for many medical indications before it was found to have antimanic properties. It can be effective in antibiotic resistant infections.

Lieb J. “The immunostimulating and antimicrobial properties of lithium and antidepressants.” J Infection 2004; 49(2): 88-93

Lieb, J. “Lithium and antidepressants: stimulating immunity and reversing infection.” Med Hypoth (2007) 69;(1): 8-11

As a retired industrial health care scientist, allow me to recommend a simple low cost and safe solution to the flu problem which I believe is more effective than flu shots: non-Rx zinc-gluconate-g;ycine based oral lozenges that are medically proven effective antivirals (confirm on Pubmed). If taken in time, one can prevent flu symptoms or shorten their duration to 2-3 days or about half of the normal span. They are available at about $7/18 lozenges for brand name or about $4 for generic versions at most drug outlets.