The new bird flu virus, which was unknown in humans until February, has so far infected at least 133 people in China and Taiwan, killing 43 of them. Photograph: Getty

The first scientific analysis of probable human-to-human transmission of a fatal new strain of bird flu that emerged in China this year gives the stro(...)

Unlike many Irish babies born on the same day, Prince George is practically guaranteed good health for the rest of his life. Not because he is a Princ(...)

Michelle McIntosh, lead researcher of Monash Institute of Pharmaceutical Sciences, says her group plans to start testing a dry-powdered form of oxytocin by early 2014. Source: Monash University via Bloomberg

A hormone treatment based on technology used in Pfizer’s failed inhalable insulin shows promise in fighting the leading cause of maternal morta(...)

An employee wearing a protection suit sprays disinfectant on chickens at a poultry market in Hefei, Anhui province today.  Photograph: Reuters

Chinese authorities have slaughtered over 20,000 birds at a poultry market in Shanghai today as the death toll from a new strain of bird flu mo(...)

Fukushima 50: Atsufima Yoshizawa. Photograph: Androniki Christodoulou

It was, recalls Atsufumi Yoshizawa, a suicide mission, volunteering to return to a radioactive nuclear power plant on the verge of tipping out (...)

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