Early use of anti-virals key in H1N1 flu: WHO
Geneva, September 26: Early use of anti-virals is effective in treating H1N1 flu and health authorities must be vigilant for signs of drug resistance, the World Health Organisation said on Friday.
Drug-resistant pandemic flu viruses have appeared infrequently so far and there is no evidence they are spreading, but further cases are likely, the WHO said on its website.