This year, there has been an unusually large increase in the number of dengue cases in Thailand. Not all of the rise in numbers, however, may be due to actual rises in cases. The increased use of a screening test for dengue, NS1 antigen test, may mean that just more cases are being reported. Other
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When natural disasters occur, such as hurricanes and earthquakes, public transportation systems that depend on railways are subject to extensive damage. It is important to recover the railways; transportation authorities around the world have improved their response techniques by learning from
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