Factors that affect the fluid, which might contribute to Meniere's disease, include: 1  Improper fluid drainage, perhaps because of a blockage or anatomic abnormality. 2  Abnormal immune response. 3  Allergies. Viral infection.  Genetic 1  predisposition. Head trauma.  Migraines.
Oral poliovirus vaccine (OPV) contains live attenuated poliovirus (Sabin strain types 1, 2 and 3) and is intended for polio prophylaxis in infants 6-12 weeks of age, all unimmunized children up to 18 years of age, and high-risk adults. Adults, however, should receive the inactivated poliovirus vaccine (IPV).
The oral polio vaccine (OPV) was developed in 1961 by Albert Sabin. Also called âtrivalent oral polio vaccineâ or âSabin vaccineâ, OPV consists of a mixture of live, attenuated (weakened) poliovirus strains of all three poliovirus types. The oral polio vaccine is simple to administer.