Polio is caused by
Virus
Polio is caused by a virus, specifically the poliovirus. It affects the nervous system and can lead to paralysis, particularly in children. Vaccination is the primary method of prevention. Therefore, the correct answer is "Virus".
Which is a serious contagious bacterial infection that usually affects the mucous membranes of the nose and throat?
Which of the following female mosquitoes acts as a carrier of dengue virus?
Who prepared the first effective vaccine against polio?
What causes the 'Mad cow' disease in cattle?
Soham is suffering from goitre. Which deficiency is the most common cause of it?
What disease in adults means ‘soft bones’ that usually develops due to a deficiency of vitamin D (often from not getting enough sunlight), or less often, digestive or kidney disease?