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 Article. 1  Polio facts. 2  What is polio? 3  What is the history of polio? 4  What causes polio? 5  What are risk factors for polio? 6  What are polio symptoms and signs? 7  How do physicians diagnose polio? 8  What is the treatment for polio? 9  What is the prognosis of polio? 10  Is it possible to prevent polio? 11  Polio-like illness.