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The industrialized countries of the world have fewer cases of polio because there are many more vaccinated individuals.

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12y ago

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How pulse polio programme has helped in reducing polio cases?

no


When was the polio epimedic?

The first Polio epidemic was in 1894 in Vermont with 132 cases of it.


How many victims of 1944 polio epidemic?

A polio vaccine was invented in 1954. Each year after that, the number of polio cases decreased. By 1974, only 5 cases occurred. These were all people who were linked to the polio vaccine.


How many people have polio today worldwide?

As of July 14, 2010 there have been 545 cases of "wild" polio worldwide in 2010. The total number of cases in 2009 was 1604. There are still some countries using the oral polio vaccine that in extremely rare cases can cause polio. I don't know the statistics for those cases.


How does polio affects people today?

The global eradication of poliomyelitis is a public health effort to eliminate all cases of poliomyelitis (polio) infection around the world. The global effort, begun in 1988 and led by the World Health Organization, UNICEF and The Rotary Foundation, has reduced the number of annual diagnosed cases from the hundreds of thousands to around a thousand.


What ususally happens to people who contract polio?

It depends on what part of the nervous system is infected by the polio virus. Though most people recovered quickly from polio, some suffered temporary or permanent paralysis and even death. Many polio survivors were disabled for life. They were a visible, painful reminder to society of the enormous toll this disease took on young lives. In about 95% of all polio cases, the person has no symptoms at all. These are known as asymptomatic cases. The rest of polio cases can be divided into three types: abortive polio, non-paralytic polio, and paralytic polio. Abortive polio: In these cases, polio is a mild illness, with viral-like symptoms such as fever, fatigue, headache, sore throat, nausea, and diarrhea. Non-paralytic polio: These cases typically involve the symptoms of abortive polio, with additional neurological symptoms, such as sensitivity to light and neck stiffness. Paralytic polio: The first signs of paralytic polio, after an initial period of viral-like symptoms, typically begin with loss of superficial reflexes and muscle pain or spasms. Paralysis, usually asymmetric, follows. Fewer than 1%-2% of people who contract polio become paralyzed. In most cases of paralytic polio, the patient recovers completely. However, for a certain number of people, paralysis or muscle weakness remains for life.


How many people survived polio?

Polio was one of the most dreaded childhood diseases of the 20th Century in the United States. There were usually about 13,000 to 20,000 cases of paralytic polio reported each year in the US before the introduction of Salk inactivated polio vaccine (IPV) in 1955. Polio peaked in 1952 when there were more than 21,000 reported cases. The number of cases of polio decreased dramatically following introduction of the vaccine and the development of a national vaccination program. In 1965, only 61 cases of paralytic polio were reported compared to 2,525 cases reported cases just five years earlier in 1960.


How does the polio vaccine effect us today?

There are still cases of polio out there today, so we have the vaccinations if someday we were to have another breakout of the epidemic!


What is the ratio of people in the us with polio?

The answer depends on whether you want the ratio of people in the US with polio compared to people with polio in the rest of the world (or the whole world), or the compared to people without polio in the US.


When was polio common?

After the development of the inactivated injectable vaccine in 1955 and the live oral vaccine in 1961, the number of polio cases dropped dramatically. In 1960, there were 2,525 paralytic cases reported, but by 1965 this number had fallen to 61.


Can polio ever come back?

Polio still exists in some parts of the world.


How many years did it take for the number of cases of polio to fall to zero?

8 Years