Seasonal variation in the incidence of hemolytic streptococci of different types in the throats of normal individuals.
D006801:Humans; D015994:Incidence; D010614:Pharynx; D012621:Seasons; D013290:Streptococcal Infections; D013291:Streptococcus
STREPTOCOCCI/infection, in throats; THROAT/streptococci, hemolytic