NB-001, a novel topical over-the-counter (OTC) treatment for cold sores (herpes labialis), may soon hit the markets in US and Canada.

An unknown virus strain which causes nagging joint pain lasting for months is reported to have affected several people in Bangalore, in the southern Indian state of Karnataka.

WHO has begun probing the claim that H1N1 may have evolved while growing virus in labs for making vaccines.

  Secondary attack rate of H1N1 ranges from 22% to 33%, says WHO