Cases of Rheumatic heart disease have decreased in recent years
because of _________.
a. Use of Antibiotics for Strep. Throat
b. A New Vaccine for Strep. Throat.
c. The Vaccine for Pertussis.
d. Better Hygiene.
because of _________.
a. Use of Antibiotics for Strep. Throat
b. A New Vaccine for Strep. Throat.
c. The Vaccine for Pertussis.
d. Better Hygiene.