Throughout the world polio us present every year, but there was a major outbreak of polio in 1955 in North America. Polio is still present in the world although it is generally not a problem in Western countries. The virus may be endemic (everyone has it) in some countries although only 10% of the population show symptoms. The virus is spread by fecal contamination of food or water or by mouth to mouth contact.
Osteoarthritis of the knee joints, is the most prevalent degenerative disease, probably, in USA.
The most prevalent illegal drug is marijuana, about 40% of the US population have used it at least once in their life.
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Polio is most common in India and Africa.
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.
The most common blood borne illness in the United States is the Hepatitis C virus. About 3.2 million people are chronically infected.
slavery is most prevalent in india
Tornadoes are most prevalent in the U.S. in the spring with peak activity usually occurring in May. They are most prevalent on the Great Plains in a region extending from northern Texas to South Dakota and Iowa. Activity between the Rockies and the Appalachians is generally high.
how prevalent is marijuana in the United States
Franklin Roosevelt the US president had polio.
Yes
Food poisoning