Tiny amaba can cause an infection to the eye, the skin, and the brain. It can be found all over the world in soil and water. Individuals can get an infection if they have their contact lenses cleaned with tap water.
Babesiosis
Disease caused by parasites carried by ticks. Affects the red blood cells and poses a higher risk in summer around the Northeast and upper Midwest of the US.
Balantidiasis
Disease transmitted by Balatidiumcoll, a single-cell parasite that mostly infects pigs but can cause intestinal infections in humans. Spread by drinking contaminated water, or through direct contact with pigs.
Blastocystosis
Illness that affects the intestines. The blastocystis goes into the human body via the focal-oral route. Can be contracted by eating or drinking anything contaminated with animal or human feces.
Trichomoniasis
Also known as "trich", a sexually transmitted infection (STI) caused by the parasite Trichomonas vaginalis. Affects the female urogenital tract.
Trypanosomiasis (Sleeping sickness)
Also called the African sleeping sickness, a disease passed on when a tsetse fly transmits a parasite belonging to the Trypanosoma family. Affects the blood, central nervous system, and lymph. Can cause changes in sleep pattern or behavior, and is considered fatal without immediate treatment. Can cross the placenta and infect a fetus during pregnancy.
Chagas disease
Disease that affects the muscle, blood, nerves, esophagus, heart, and colon. Transferred through an insect bite. More than 300,000 people in the United States have the parasite that causes this disease.
Roundworm or acariasia infection
Does not usually show any physical symptoms, but the worm may be noticed in feces. Enters the human body through the consumption of contaminated food or drink.
Coccidiosis
Disease that affects the human intestines. Coccidia is transmitted through the fecal-oral route. Found all over the world. Can also affect cats and dogs, but these are different from the kinds that affect humans.
Amoebiasis
Disease caused by the parasite Entamoeba histolytion, which attacks the intestines. Highly unlikely to be found in places outside tropical regions with poor sanitation and high population density. Transmitted via the fecal-oral route.
Giardiasis
Also known as "beaver fever", a disease that affects the lumen of a person's small intestine. Caused by drinking anything contaminated with feces, where dormant cysts may cause an infection.
Isosporiasis or cyclosporiasis
Disease caused by the Cystoisospora belli, formally called Isospora Belli. Creates an infection in the epithelial cells of the small intestine. Can be found all over the world and is both preventable and treatable. Passed on via the fecal-oral route.
Leishmaniasis
Common disease transferred by parasites belonging to the Leishmania family. Can affect the viscera, the skin, or the mucous membranes of the mouth, nose, and throat. Can be a fatal condition. Certain types of sandflies transmit the parasite responsible.
Clonorchiasis
Also called the Chinese liver fluke disease, affects the gall bladder. A person can become infected by eating raw, preserved, or poorly processed freshwater fish.
Diphyllobothriasis
Disease that affects the blood and intestines. Humans can get infected by eating raw fish that live partly in freshwater. The prevalence has increased in certain parts of the developed world, likely due to the growing popularity of salted fillets, sushi, ceviche, and other dishes involving raw fish.
Enterobiasis
Also known as threadworm or pinworm, Enterobius vermicularis can take abode in the human colon and rectum. The worms lay eggs around a person's anus while they sleep, leading to itching. Spread through the oral-fecal route.
Hookworm infection
Common causes of intestinal disease. The parasites lay their eggs in the soil, and their larvae can easily penetrate the human skin. Early physical symptoms include a rash.
Strongyloidiasis
Parasite that can lead to severe and even fatal immunodeficiency. Penetrates via the human skin and affects the intestines, lungs, and. Passed on from direct contact with soil that has been contaminated. Mostly occurs in subtropical and tropical regions.
Taeniasis (pork and beef tapeworm)
Disease caused by tapeworm belonging to the taenia family. They attack the intestines and are passed on by eating raw or undercooked beef or pork.
Toxocariasis
Infection transmitted by a roundworm from animals to humans. Affects the brains, eyes, and liver. Caused by swallowing the eggs of the parasite accidentally.
Trichinosis
Infection caused by the roundworm belonging to the Trichinella family. Can cause fever, intestinal symptoms, and muscle aches. Transferred from animals to humans by eating undercooked meat.
Whipworm infection
Also called trichuriasis, the whipworms take abode in the human large intestine. Its eggs are passed in feces, and it is a prevalent parasite all over the world. Humans can get infected from ingesting the eggs accidentally when consuming unwashed fruit or vegetables.