Vaccine

A vaccine is a biological preparation that improves immunity to a particular disease. A vaccine typically contains an agent that resembles a disease-causing microorganism, and is often made from weakened or killed forms of the microbe, its toxins or one of its surface proteins. The agent stimulates the body's immune system to recognize the agent as foreign, destroy it, and "remember" it, so that the immune system can more easily recognize and destroy any of these microorganisms that it later encounters.

Vaccines may be prophylactic (example: to prevent or ameliorate the effects of a future infection by any natural or "wild" pathogen), or therapeutic (e.g. vaccines against cancer are also being investigated; see cancer vaccine).

The term vaccine derives from Edward Jenner's 1796 use of cow pox (Latin variola vaccinia, adapted from the Latin vaccīn-us, from vacca, cow), to inoculate humans, providing them protection against smallpox.

"With the exception of safe water, no other modality, not even antibiotics, has had such a major effect on mortality reduction and population growth."

Read more about Vaccine:  Effectiveness, Importance, Types, Developing Immunity, Schedule, History, Production, Delivery Systems, Use in Veterinary Medicine, Trends

Other articles related to "vaccine, vaccines":

Lois Privor-Dumm - Publications
... "Supporting new vaccine introduction decisions Lessons learned from the Hib Initiative experience" ... Vaccine 28 (43) 7123–9 ... doi10.1016/j.vaccine.2010.07.028 ...
Lois Privor-Dumm - Early Career
... Privor-Dumm spent years in the vaccine industry working for Wyeth, where she helped lead efforts to launch Prevnar (pneumococcal conjugate vaccine) in the US, achieving ... Director for the Latin American countries to introduce pneumococcal and meningococcal vaccines ... to build awareness about Wyeth’s vaccines and pharmaceuticals in the scientific community, supporting efforts with policy makers regarding the introduction of new vaccines and providing marketing ...
Smallpox Survivors - Prevention
... Jenner called the material used for inoculation vaccine, from the root word vacca, which is Latin for cow ... The origin of vaccinia virus and how it came to be in the vaccine are not known ... The current formulation of smallpox vaccine is a live virus preparation of infectious vaccinia virus ...
Schistosomiasis Vaccine
... A Schistosomiasis vaccine is a vaccine against Schistosomiasis (also known as bilharzia, bilharziosis or snail fever), a parasitic disease caused by several ... No effective vaccine for the disease exists yet ... reinfection occurs frequently following drug treatment, thus a vaccine is sought to provide long-term treatment ...
Vaccine - Trends
... Vaccine development has several trends Until recently, most vaccines were aimed at infants and children, but adolescents and adults are increasingly being targeted ... Combinations of vaccines are becoming more common vaccines containing five or more components are used in many parts of the world ... New methods of administering vaccines are being developed, such as skin patches, aerosols via inhalation devices, and eating genetically engineered plants ...