Brazil rules out five suspected cases of bird flu in humans
The test results were negative for H5N1 influenzaBrazil's Rio Grande do Sul state ruled out five suspected cases of bird flu in humans, Reuters reported, citing a statement from its health secretariat on Saturday.
Two farm workers and three zoo employees have shown flu-like symptoms after being in contact with sick birds, the statement said. The test results were negative for H5N1 influenza.