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).
Polio vaccines are vaccines used to prevent poliomyelitis (polio). One type uses inactivated poliovirus and is given by injection (IPV), while the other type uses weakened poliovirus and is given by mouth (OPV). The World Health Organization recommends all children be vaccinated against polio. The two vaccines have eliminated polio from most of the world, and reduced the number of cases each year from an estimated 350,000 in 1988 to 74 in 2015.