Sunday, 8 August 2021 (YJC)_Medical professionals haven't ruled out the necessity of additional booster shots against COVID-19 for vaccinated people. Some governments are encouraging people to get a third dose ; the precise period of immunity conferred by the inoculation hasn’t been determined yet.
TEHRAN, Feb 27 -For people with the deadly skin cancer melanoma, one dose of the drug Keytruda before surgery might stop the cancer in its tracks, according to a groundbreaking new study.