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The World Health Organization said that there is currently “no evidence” that people who recovered from COVID-19 and have antibodies are protected from a second infection. With some countries assuming recovered COVID-19 patients are immune to the disease, the WHO…

All About Vitamin D | Symptoms | Deficiency | Rich foods ================================================= In this video we have tried to bring some valuable information with proper creative method so one can have interest and enjoy the video and learn more about…