the JN.1 variant was detected in 127 cases reported in China

     According to media reports, on January 15, through the data query of the National Biological Information Center, from October 2023 to January 15, 2024, the JN.1 variant was detected in 127 cases reported in Shanghai, Fujian, Chengdu, Hong Kong, Taiwan, China. Only 13 cases were detected on December 14, 2023, an increase of nearly nine times in just one month.

Some netizens said, "Mycoplasma, influenza A, influenza B... I was tortured all over in turn, "The front foot fever has not gone away, and the rear foot COVID-19 variant JN.1 is coming again."

The nose is the main entry point for respiratory viruses or bacteria. "Masks not only protect you from directly inhaling the virus, but they also increase the temperature of your nose, like wearing a sweater over your nose," said Benjamin Blair, director of the Department of Eye, otolaryngology at Massachusetts and one of the study's authors.

Patel, professor of otolaryngology at Stanford University School of Medicine, agrees: "The warmer the nasal environment, the better this innate immune defense mechanism can function." Maybe that's another reason to wear a mask!"

Common masks generally have 3 layers, referred to as SMS structure. The highest number of layers in the country is 5 layers, that is, SMMMS structure. The "S" here means the Spunbond layer, which mainly supports the entire non-woven fabric structure and does not have much effect on the barrier. The most important thing inside the mask is the barrier layer or Meltblown layer M (Meltblown), known as the "heart" of the mask.

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