Parasitic infections can be spread in a number of ways. For example, protozoa and helminths can be spread through contaminated water, food, waste, soil, and blood. Some can be passed through sexual contact. Some parasites are spread by insects that act as a vector, or carrier, of the disease.
What is the most common way to get a parasite?
Anyone can contract a parasitic infection and some people are at higher risk because of certain reasons. One of the most common ways of contracting this type of condition is through contaminated food such as undercooked meat or drinking unclean water.
How are parasites transferred?
Vector-borne transmission of disease can take place when the parasite enters the host through the saliva of the insect during a blood meal (for example, malaria), or from parasites in the feces of the insect that defecates immediately after a blood meal (for example, Chagas disease).
What is the most common mode of transmission for parasitic worms?
Faecal-oral transmission, where parasites found in the stool of one person end up being swallowed by another person, is the most common mode of transmission of parasitic protozoa and helminths. The initial symptoms tend to be gastrointestinal symptoms like diarrhoea.
How are intestinal parasites typically transmitted?
Transmission of protozoa that live in a human's intestine to another human typically occurs through a fecal-oral route (for example, contaminated food or water or person-to-person contact).
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