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Drinking or accidentally inhaling raw milk containing bird flu virus may lead to illness. In addition, touching your eyes, nose, or mouth with unwashed hands after touching raw milk with bird flu virus may also lead to infection. Symptoms of bird flu infection in humans include eye redness or...
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Conversely, in low-temperature and dry environments, a closed mouth (i.e., few vowels) may reduce heat loss from the mouth area. Lastly, it is possible that, in addition to how far the sound of the voice reaches, it is also possible that the maintenance of the human heat balance is ...