Oral polio vaccine is highly effective and inexpensive (about US$0.10 per dose, or US$0.30 per child and its availability has bolstered efforts to eradicate polio. A study carried out in an isolated Eskimo village showed that antibodies produced from subclinical wild virus infection persisted for at least 40 years. Because the immune response to oral polio vaccine is very similar to natural polio infection, it is expected that oral polio vaccination provides similar lifelong immunity to the virus.
Contact immunity to polio can occur when attenuated poliovirus derived from the oral polio vaccine is excreted, and infects and indirectly vaccinates unvaccinated individuals.
A. Climate, because the climate is the weather conditions in an area for a long period of time, so she would be able to pack clothing that wouldnt hinder her in that specific climate
The Equator is halfway in between
Transform plate boundaries because when two plate boundaries slide past each other, they create vibrations. A large amount of those vibrations are earthquakes
Fish that are raised in clean filtered water are healthier.
Plants grow faster when they are in yellow light.
