Diseases, Conditions, Syndromes

Human cases of bird flu 'an enormous concern': WHO

The World Health Organization voiced alarm Thursday at the growing spread of H5N1 bird flu to new species, including humans, who face an "extraordinarily high" mortality rate.

Psychology & Psychiatry

Doctors cite unmedicated mental illness in Sydney mall attack

No one can know the mind of Sydney shopping mall killer Joel Cauchi, but psychiatrists say one underlying cause of his rampage is evident: he had schizophrenia, stopped his medication and fell out of treatment.

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