VARIOLA VACCINE Meaning and
Definition
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Variola vaccine, also known as smallpox vaccine, is a medicinal preparation that provides immunization against the highly infectious and deadly disease known as smallpox. The variola vaccine serves as a preventative measure against smallpox, a virus caused by the variola virus.
The method of vaccination involves introducing a weakened form of the vaccinia virus, a related virus to variola, into the human body. The live attenuated vaccinia virus acts as a substitute infection, inducing an immune response while not causing significant illness or severe symptoms. This response triggers the body's immune system to produce antibodies that specifically recognize and fight the variola virus.
The variola vaccine is typically administered through a shallow skin puncture, using a bifurcated needle that is lightly dipped into the vaccine. This is known as the scratch technique. Upon application, a small pustule forms at the site of vaccination, indicating a successful immunization. The pustule generally crusts over and eventually falls off, leaving behind a small scar that signifies the immunity acquired.
Due to a global smallpox eradication program led by the World Health Organization (WHO), routine administration of the variola vaccine is not generally practiced anymore, as the disease has been declared eradicated in 1980. However, certain laboratories and military personnel may still receive the vaccine for research purposes or in preparation for any potential bioterrorism threats involving smallpox.
It is important to note that while the variola vaccine is effective against smallpox, it may cause certain adverse reactions, such as fever, rash, or even severe complications in individuals with weakened immune systems. As with any vaccine, consultation with a healthcare professional is essential before receiving the variola vaccine.
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Etymology of VARIOLA VACCINE
The term "variola vaccine" is derived from the Latin word "variola", which means "pock" or "pustule". Variola refers specifically to the smallpox virus, also known as variola virus, which causes a highly contagious and often deadly disease. The smallpox vaccine was developed to prevent this disease, hence the combination of "variola" and "vaccine" to describe the preventive treatment.
Similar spelling words for VARIOLA VACCINE
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