These vaccines are unlikely to completely sterilize a population. Professor Sir John Bell, SAGE

NonProfit Educational Fair Use Copyright Section 107 US The vaccine contains a spike protein called syncytin1, vital for the formation of human placenta in women. It is also in the male sperm, Syncytin and its receptor are present in human gametes Gametes are an organism s reproductive cells. They are also referred to as sex cells. Female gametes are called ova or egg cells, and male gametes are called sperm localization and temporal appearance is consistent with a possible role in fusion between fema