Age Of Individual
Strep throat is an infection that is more likely to occur in individuals who are a part of certain age groups than it is in others. Strep throat is a rare occurrence in individuals younger than three years old and can cause serious complications when it develops during infancy and toddler years. Strep throat infections are most prevalent among individuals between five and fifteen years old.
This increased prevalence of strep throat in school-aged children is most likely the result of less immunity and multiple exposures to the group A streptococcus bacteria from crowded institutions. Children who attend school, summer camps, and daycare are more likely to contract strep throat infections than children who do not frequent such facilities. Newborn babies are much less likely than those in other age groups to develop strep throat because they have acquired immunity and antibodies transferred through the placenta from their mother.