POLIOMYELITIS VACCINE Meaning and
Definition
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The term "poliomyelitis vaccine" refers to a preventative immunization designed to offer protection against the poliovirus and reduce the incidence of poliomyelitis. Poliomyelitis, commonly known as polio, is an infectious viral disease that affects the central nervous system, leading to paralysis or even death in severe cases.
The poliomyelitis vaccine is typically administered in multiple doses, usually through injections, to trigger the body's immune response and build immunity against the poliovirus. There are primarily two types of polio vaccines: the inactivated polio vaccine (IPV) and the oral polio vaccine (OPV).
The IPV, commonly given as an injection, contains killed or inactivated poliovirus, rendering it incapable of causing the disease. This vaccine prompts the immune system to recognize the poliovirus and produce antibodies to fight against it. On the other hand, the OPV is an oral vaccine that contains weakened live poliovirus. It replicates in the intestines, triggering an immune response and providing both intestinal and blood immunity.
Poliomyelitis vaccines are considered highly effective and have played a crucial role in halting the spread of polio worldwide. The vaccines have significantly reduced the global incidence of polio cases, effectively eradicating the disease from several parts of the world. The World Health Organization (WHO) spearheads global polio immunization campaigns, aiming to provide access to poliomyelitis vaccines in regions where the disease remains endemic.
In conclusion, a poliomyelitis vaccine is a medical intervention designed to induce immunity against the poliovirus, thereby reducing the risk of poliomyelitis.
Common Misspellings for POLIOMYELITIS VACCINE
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Etymology of POLIOMYELITIS VACCINE
The etymology of the word "poliomyelitis vaccine" can be broken down as follows:
1. Poliomyelitis: The word "poliomyelitis" is derived from two Greek words - "polio" meaning "gray" and "myelos" meaning "marrow". It refers to an infectious viral disease that primarily affects the gray matter of the spinal cord. The suffix "-itis" is added to indicate inflammation.
2. Vaccine: The word "vaccine" has its roots in the Latin word "vaccinus" which means "from cows". It originated from the work of Edward Jenner, an English physician, who discovered that inoculating individuals with cowpox could prevent them from contracting smallpox. He observed that milkmaids who contracted cowpox did not get smallpox. "Vaccinus" is derived from "vacca", meaning "cow".
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