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Why Lyme disease is common in the north, rare in the south![]() ![]() Washington DC (SPX) Jan 13, 2017 The ticks that transmit Lyme disease to people die of dehydration when exposed to a combination of high temperature and lowered humidity, a new USGS-led study has found. In an earlier related study, the researchers found that southern black-legged ticks, unlike northern ones, usually stay hidden under a layer of leaves, where they are less likely to encounter people. The research group, whose findings were published Jan. 11 in the journal PLOS ONE, hypothesizes that southern ticks typically shelte ... read more |
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![]() A roast duck vendor has died of bird flu in central China, the official Xinhua news agency said Saturday, the latest human casualty of the disease this winter. ... more ![]() ![]() Retroviruses - the family of viruses that includes HIV - are almost half a billion years old, according to new research by scientists at Oxford University. That's several hundred million years older ... more ![]() ![]() Retroviruses are nearly 500 million years old, according to new research by scientists at Oxford University. According to a new study published in Nature Communications, the evolutionary arms race between retroviruses and their hosts began several hundred million years before scientists previously thought. ... more ![]() ![]() French hospitals are being stretched to their limits by a major flu epidemic sweeping the country, France's health authorities warn. ... more |
Previous Issues | Jan 18 | Jan 17 | Jan 16 | Jan 13 | Jan 12 |
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![]() Zimbabwe has banned street food vendors in the capital Harare after a typhoid outbreak blamed on poor sanitation and erratic water supplies. ... more ![]() ![]() Is the United States at risk for a large-scale outbreak of Zika or other mosquito-borne disease? While climate conditions in the U.S. are increasingly favorable to mosquitos, socioeconomic factors s ... more ![]() ![]() Hong Kong on Friday confirmed its second human case of bird flu this season, days after an elderly man died of the virus. ... more ![]() ![]() Sixteen people including two surgeons have been jailed for between two and five years in China for trafficking in human organs, a practice still widespread in the country. ... more ![]() ![]() Contact lenses, spectacles and eye implants are now being made more accurately thanks to research instruments flying on the International Space Station. With the competitive lens market offeri ... more |
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![]() ![]() Bacteria evolving more sophisticated antibiotic resistance ![]() ![]() An elderly man has died of bird flu in Hong Kong in the city's first human case of the disease this winter, authorities said Tuesday. ... more ![]() ![]() Angola on Friday declared the end of a yellow fever outbreak that killed at least 400 people, after an emergency United Nations vaccination campaign covering 25 million people. ... more |
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