Reuters Health News Summary

Following is a summary of current health news briefs.

FDA rebuff deals big blow to Novo Nordisk's U.S. hopes

COPENHAGEN (Reuters) - U.S. regulators dealt a major blow to Novo Nordisk's <NOVOb.CO> hopes for its new long-acting insulin Tresiba by demanding the Danish drugmaker conduct additional clinical tests to assess potential heart risks. Novo, the world's biggest insulin maker, said the U.S. Food and Drug Administration (FDA) had requested additional data from a dedicated cardiovascular outcomes trial before it would consider approving Tresiba and related product Ryzodeg.

Two infected with bird flu in southwest China

BEIJING (Reuters) - Two people in southwest China have tested positive for the H5N1 bird flu virus and are critically ill, state news agency Xinhua said on Sunday, citing the Chinese health ministry. A 21-year-old woman and 31-year-old man in Guiyang had tested positive for the highly pathogenic H5N1 virus on Sunday after developing symptoms on February 2 and February 3 respectively, Xinhua cited health authorities as saying.