Worldwide Travelers Vaccines Market 2017 by Analysis of Major Industry Segments 2025
A vaccine is a chemical and biological preparation that helps fight a particular disease and boosts immunity. It contains an agent similar to a disease-causing organism, composed from the killed form of the microbe. The vaccine could be prophylactic or therapeutic. The term "vaccine" is derived from "variolae vaccinate" (cowpox). According to the World Health Organization, there are currently 25 licensed vaccines available to prevent infection. Their efficacy depends on the following parameters: the disease itself, the strain of the...
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