Biological Simplification of Immunity

Biological simplification of the way the body reacts when a virus or bacterium enters the body.

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Tags Bacterial Infections, Biological Explanations, Biological Simplification, Biology, Coronavirus, COVID-19, Dangerous Coronavirus, Education, Education In Sinhalese, Educational Videos, Health Videos, Immune Function, Immunity System, My Life Education, Sri Lanka Education, Symptoms of Covid-19, Tissa Jananayake, Viral Diseases, Virus Education