California doctors and other health experts are on the lookout for cases of a new strain of swine flu, a potentially dangerous virus that has reignited fears of a pandemic flu outbreak after killing about 60 people in Mexico and sickening eight people in the United States. Hospitals and public health departments throughout California, where six of the American cases have been found, were told Friday to increase surveillance of the rare strain of flu that combines genetic material from humans, pigs and birds. State and federal health officials said there is little cause for alarm in the United States at this point – all of the U.S. cases have been mild, and the flu has been responsive to drugs. Everyone infected so far has fully recovered; one woman was hospitalized, but she had an underlying condition that complicated her case, state public health officials said. But the cases in Mexico have been startlingly severe, with more than 800 cases of pneumonia in the capital alone that are suspected to be related to the swine flu, according to the World Health Organization. Healthy adults hit Also worrisome is that most of the illness has been in […]