In the past, before a vaccine was available, 95 percent of children had been infected with rotavirus by 5 years of age.
First, the most typical source of diarrheal illness in infants and young toddlers is rotaviruses. this was caused when the children used to take unwashed mouth in their mouth and this will take germs to their immune system that will affect them.
It was so that every child from the age of five or below was infected with the route of the virus at least once in their lifetime, and the approximate figure that came was 95% of the toddlers were infected by this virus before the medicine also vaccine was even found.
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