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Bird Flu Spotted

China's National Health Commission has announced a confirmed case of H10N3, a rare avian influenza, the New York Times reports. It adds that the health agency says a 41-year-old man in Jiangsu Province was hospitalized in late April after feeling feverish.

Genome sequencing of samples from the patient by the Chinese Center for Disease Control and Prevention revealed last week that he had been infected with H10N3, the Times adds. While Agence France Presse notes it is unclear how the man contracted the flu, Reuters adds that there is a low risk of further spread, as authorities did not find other cases among the local population or the man's close contacts. Cases like this occur sporadically in regions where there is a high amount of contact between people and both farmed and wild birds, Reuters notes.

"As long as avian influenza viruses circulate in poultry, sporadic infection of avian influenza in humans is not surprising, which is a vivid reminder that the threat of an influenza pandemic is persistent," the World Health Organization tells Reuters.

The worry, the Times adds, is when someone is simultaneously infected with an avian flu and a human flu, allowing them to exchange genetic material and increase the risk for pandemic flu.

The Scan

Pig Organ Transplants Considered

The Wall Street Journal reports that the US Food and Drug Administration may soon allow clinical trials that involve transplanting pig organs into humans.

'Poo-Bank' Proposal

Harvard Medical School researchers suggest people should bank stool samples when they are young to transplant when they later develop age-related diseases.

Spurred to Develop Again

New Scientist reports that researchers may have uncovered why about 60 percent of in vitro fertilization embryos stop developing.

Science Papers Examine Breast Milk Cell Populations, Cerebral Cortex Cellular Diversity, Micronesia Population History

In Science this week: unique cell populations found within breast milk, 100 transcriptionally distinct cell populations uncovered in the cerebral cortex, and more.