Two more cases of indigenous dengue fever have been reported in the southern city of Kaohsiung, bringing to five the total number of such cases recorded since the start of the dengue epidemic season in March, the Centers for Disease Control (CDC) said Monday.

Wild ducks that are immune to the effects of H5N1 avian influenza could be spreading the virus far and wide, U.S. government researchers said on Monday.

People vaccinated against seasonal flu appeared to have been at increased risk of the H1N1 pandemic flu that killed thousands worldwide in 2009, Canadian researchers said Tuesday.

The H1N1 swine flu virus may have been new to humanity in many ways but in one key feature its closest relative was the 1918 pandemic virus, researchers recently reported.

Cuba will begin vaccinating nearly 10 percent of its citizens against swine flu next week, reversing its previous skepticism about the high cost and effectiveness of immunization to combat the virus.

Australian scientists said Wednesday they had discovered a drug which could cure tuberculosis at its non-infectious stage and could be the first major breakthrough on the disease in 50 years.

At least 117,000 chickens were destroyed in northern Bangladesh Sunday after avian flu outbreak on one of the country's largest poultry farms, a local official said.

Chinese officials say 8,382 pigs have been slaughtered because of a foot-and-mouth disease outbreak in the southern city of Guangzhou.

Taiwan recorded three cases of Chikungunya fever — all from Indonesia — in the first two months of this year, the Centers for Disease Control (CDC) said yesterday.

Malaysia's government has confirmed the country's first death linked to swine flu in nearly half-a-year.