- What animal did polio come from?
- Does polio vaccine provide lifelong immunity?
- When did they stop giving the polio vaccine in Canada?
- Can you get polio twice?
- How did they stop polio?
- How many times should Polio be given?
- How long is the polio vaccine good for?
- Do adults need a polio booster?
- Does polio still exist?
- What was the mortality rate of polio?
- Is a polio vaccine good for life?
- Can polio affect you later in life?
- Which vaccines last for life?
- Why did they stop using oral polio vaccine?
- Is polio a man made disease?
- Can you still get polio if vaccinated?
- How did people get polio?
What animal did polio come from?
The discovery by Karl Landsteiner and Erwin Popper in 1908 that polio was caused by a virus, a discovery made by inoculating macaque monkeys with an extract of nervous tissue from polio victims that was shown to be free of other infectious agents..
Does polio vaccine provide lifelong immunity?
Polio Vaccines. Poliovirus infection can provide lifelong immunity against the disease, but this protection is limited to the serotype involved. Infection with one type does not protect an individual against infection with the other two types.
When did they stop giving the polio vaccine in Canada?
Disease distribution The incidence of polio in Canada was dramatically reduced by the introduction of immunization programs in the 1950s. In Canada, after using the live attenuated oral polio vaccine (OPV) for many years, its use was replaced with an inactivated poliomyelitis vaccine (IPV) in 1995/1996.
Can you get polio twice?
Does past infection with polio make a person immune? There are three types of polio virus. Lifelong immunity usually depends on which type of virus a person contracts. Second attacks are rare and result from infection with a polio virus of a different type than the first attack.
How did they stop polio?
Polio can be prevented with vaccine. Inactivated polio vaccine (IPV) is the only polio vaccine that has been given in the United States since 2000. It is given by shot in the arm or leg, depending on the person’s age. Oral polio vaccine (OPV) is used in other countries.
How many times should Polio be given?
OPV is the WHO-recommended vaccine for the global eradication of polio. Each child requires just two drops per dose to be immunized against polio. Usually administered four times if the EPI schedule is followed, OPV is safe and effective in providing protection against the paralyzing poliovirus.
How long is the polio vaccine good for?
It is not known how long people who received IPV will be immune to poliovirus, but they are most likely protected for many years after a complete series of IPV.
Do adults need a polio booster?
Routine poliovirus vaccination of U.S. adults (i.e., persons aged >18 years) is not necessary. Most adults do not need polio vaccine because they were already vaccinated as children and their risk of exposure to polioviruses in the United States is minimal.
Does polio still exist?
Polio does still exist, although polio cases have decreased by over 99% since 1988, from an estimated more than 350 000 cases to 22 reported cases in 2017. This reduction is the result of the global effort to eradicate the disease.
What was the mortality rate of polio?
The mortality rate for acute paralytic polio ranges from 5–15%. The paralysis can progress for up to one week. Permanent weakness is observed in two-thirds of patients with paralytic poliomyelitis.
Is a polio vaccine good for life?
Adults who are at increased risk of exposure to poliovirus and who have previously completed a routine series of polio vaccine (IPV or OPV) can receive one lifetime booster dose of IPV.
Can polio affect you later in life?
Symptoms vary from mild, flu-like symptoms to paralysis and possibly death. People who have had polio may experience effects later in life called the late effects of polio. The late effects of polio are when physical symptoms return 15 years or more after the first polio infection.
Which vaccines last for life?
A few vaccines, like the two for measles or the series for hepatitis B, may make you immune for your entire life. Others, like tetanus, last for many years but require periodic shots (boosters) for continued protection against the disease.
Why did they stop using oral polio vaccine?
According to the World Health Organization, routine immunization with OPV must cease after the eradication of poliovirus because of the danger of outbreaks of circulating vaccine-derived poliovirus and the risk of VAPP.
Is polio a man made disease?
No, says Wimmer. “Polio is a very simple virus,” he tells WebMD. “The smallpox virus is much, much larger, and to put it together from scratch right now is almost impossible. Smallpox could not be re-created now, but maybe in 20-30 years when technology is more advanced.
Can you still get polio if vaccinated?
No, thanks to a successful vaccination program, the United States has been polio-free for more than 30 years, but the disease still occurs in other parts of the world. It would only take one person with polio traveling from another country to bring polio back to the United States.
How did people get polio?
Poliovirus can be transmitted through direct contact with someone infected with the virus or, less commonly, through contaminated food and water. People carrying the poliovirus can spread the virus for weeks in their feces. People who have the virus but don’t have symptoms can pass the virus to others.