Using two masks reduces the prevalence of corona by 96.5%
The US Centers for Disease Control and Prevention (CDC) says the simultaneous use of two masks seems to be more
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The US Centers for Disease Control and Prevention (CDC) says the simultaneous use of two masks seems to be more
Read MoreRazi, deputy director of research and technology at the Razi Vaccine and Serum Research Institute, said: “With the approval of
Read MoreAbout 10 corona vaccines are currently being developed in various countries around the world, and more are being tested. Iran,
Read MoreScientists are developing more than 100 different vaccines for the new coronavirus using a variety of techniques, from traditional methods
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