Slovak officials said two suspected cases of swine-flu infections could not be confirmed, dpa reported.

   A first test of a woman who recently returned from Mexico turned out negative, a hospital spokeswoman said late Wednesday. A second test was being conducted but it could already be ruled out that the woman was suffering from the H1N1 swine flu virus.

   A second suspected case in the capital Bratislava also proved unfounded, the Health Ministry said.