A 70-year-old woman is dead and man critically ill after receiving kidneys at Boston hospitals from a donor who carried an undetected virus.

The 57-year-old man who received a kidney from the same donor is also infected with the hard-to-detect lymphocyte choriomeningitis virus or LCMV, the Boston Globe said Tuesday

South Korea on Monday slaughtered and buried around 15,000 poultry in Seoul to prevent further spreading of the deadly H5N1 strain of bird flu in the capital. Quarantine officials reported culling chickens, ducks, pheasants and turkeys raised in farms, restaurants, schools and homes in the capital.

Monday's culling resulted from a second case of bird flu confirmed in Seoul on Sunday, less than a week after the first one was detected. On Sunday, two outbreaks of the H5N1 virus were reported in poultry farms in Busan, country's second largest city, and Ansung

The Food and Drug Administration warned the medical community on Friday regarding heparin after learning that some of the facilities still had supplies of the contaminated blood thinner.

A large number of hospitals, medical societies and pharmaceutical organizations were warned despite a recall by the California Department of Health and the FDA's own recall monitoring. Baxter International Inc., the largest supplier of heparin, also showed gaps in the recall response

Korean officials said Tuesday some 6 million ducks and chickens have been slaughtered since the spread of bird flu in this capital city.

The agriculture ministry said that this year is the worst bird flu outbreak to hit the city

A graduate school of public health will open in September at the University of Toronto, which will deal with epidemic diseases. Leading epidemiologist Jack Mandel will the director of the Dalla Lana School of Public Health.

The school is named after Paul Dalla Lana, chairman and founder of the NorthWest Healthcare Properties, which provided the $20 million grant to fund the school