Most colleges have a limit on the number of college credits a student can carry (or study) in one semester. The limit is usually between 17-22 credit hours a semester. It would probably take most students at least two semesters to complete 28 credit hours, or one academic year. 6 people found this useful.
Polio, also known as poliomyelitis and infantile paralysis, is a highly contagious viral infection that can lead to paralysis, breathing problems, or even death. Polio can be classified as occurring with or without symptoms. About 95 percent of all cases are asymptomatic, and between 4 and 8 percent of cases are symptomatic.
Polio. 1  Poliomyelitis, commonly called polio, is an infection caused by a virus that multiplies in the gastrointestinal tract. 2  There are three main serotypes of polio virus: PCV1, PCV2 and PCV3.. 3  Polio is transmitted when the virus enters the mouth or nose and infects the throat and gastrointestinal tract. Poliomyelitis, commonly called polio, is an infection caused by a virus that multiplies in the gastrointestinal tract. 2  There are three main serotypes of polio virus: PCV1, PCV2 and PCV3..