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How long did Salk work on the polio vaccine?
5 years
Did edward Jenner develop a vaccine for polio?
No, he developed a vaccine for smallpox, back in 1796. But his successful experiments led to other vaccines long after he died, including the polio vaccine, which is usually credited to Jonas Salk-- he announced it in 1953.
How long is a pneumonia vaccine good for?
I was vaccinated for Polio as a child in the mid 1950's. I am 62 yrs. old now--am I still immuned to contracting ?Polio
Why is polio vaccine prepared in injection form?
There are still two types of polio vaccines available. One of those is administered PO ("per os" ~ Latin for "by mouth") known as OPV (oral polio vaccine) and the other is the injected form IPV (inactivated polio vaccine). Oral Polio Vaccine (OPV) is a live attenuated (weakened) vaccine. As the name implies, IPV is a vaccine made with inactive/"dead" virus particles. The polio virus is still in the environment in some places and usually gets into the body by way of the intestines, so the oral vaccine is especially effective against the "wild" viruses through gastrointestinal immunity. The wild viruses are not as prevalent as in the past due to the long term use of polio vaccines, and are currently seen in only some areas of the world without that history of vaccinations. There are no preservatives in the live attenuated oral polio vaccine, but there are some traces of some antibiotics used in the purification of contaminates that may get in the vaccine during manufacture. Those people with antibiotic allergies need to talk to their health care professionals about any allergic reaction risks, as you would for any prescriptions in allergic individuals. The live virus also presents some extra difficulty with handling and storage, and is more difficult to preserve in hot areas or over long transport to out of the way locations. This is compounded by strong regulations about the storage and preservation of the OPV that adds costs to maintain compliance and so can make IPV more preferred. The OPV produces immunity to three poliovirus types. Three doses can produce immunity in 95% of those who receive oral polio vaccine. One dose is effective in 50%. There can be some "secondary immunization" provided to others by those who receive the oral vaccine and pass the virus through their feces. This gives, in a sense, a vaccination to the others exposed to their feces and the minute doses of the vaccine it contains. This is a plus in the more remote and economically deprived locations. There is also the injected IPV (inactivated polio vaccine) that mostly prevents the virus from getting into the body through the nervous system. This is what is seen used most often in areas of the world that do not still have wild polio in the environment (like in the US). However, the live vaccine is still used in areas of the world where there is more incidence of the disease in the "wild". This is because any concerns about an increase in the virulence of the weakened live virus that could potentially cause infection are offset by the increased effectiveness, need for fewer doses, and often life long protection that a live vaccine produces.
How long does it take to develop post polio syndrome?
Post-polio syndrome occurs some decades after the original infection with polio.
How long to wait between flu vaccine and shingles vaccine?
interval- flu vaccine and the shingles vaccine
How long can it take for polio symptoms to show?
Type your answer here... Yes you can i did and now i have Post polio syndrome and i have no help from any department.What does a man do after he has worked his life away and lost everything to get help from a doctors.
How Long do tetanus shots last?
TB vaccine (BCG, live attenuated vaccine) efficacy last upto 10yrs i.e the immunity acquired through vaccination last up to 10yrs of age if given at birth.and tuberculosis (TB) vaccine is more efficacious for preventing tuberculous meningitis in children than pulmonary tuberculosis.
If flu vaccine is left out of refrigerator how long is it good for?
how long is flu vaccine good for if left out of the refrigerator
How many lives does polio vaccine save each year?
Two polio vaccines are used throughout the world to combat poliomyelitis (or polio). The first was developed by Jonas Salk and first tested in 1952. Announced to the world by Salk on April 12, 1955, it consists of an injected dose of inactivated (dead) poliovirus. An oral vaccine was developed by Albert Sabin using attenuated poliovirus. Human trials of Sabin's vaccine began in 1957 and it was licensed in 1962.[1]Because there is no long term carrier state for poliovirus in immunocompetent individuals, polioviruses have no non-primate reservoir in nature, and survival of the virus in the environment for an extended period of time appears to be remote. Therefore, interruption of person-to person transmission of the virus by vaccination is the critical step in global polio eradication.[2] The two vaccines have eradicated polio from most countries in the world,[3][4] and reduced the worldwide incidence from an estimated 350,000 cases in 1988 to 1,652 cases in 2007.[5][6][7]i hope that helped you if not sorry
Is post polio syndrome contagious?
No. It is a set of neurologic symptoms which exist long after polio, itself, is experienced by the sufferer.
How long ago was polio eradicated?
Last one? Polio is still problematic. We are working on ridding the world of this disease. Source: http://www.polioeradication.org/disease.asp
