Parasitic Infections
Parasitic infections are caused by single-celled or multicellular organisms living on or in a host. They are most common in tropical regions and where sanitation is limited, but can also occur in developed countries.
Table of Contents
Quick Facts
- Types: Protozoa, helminths, ectoparasites
Common Parasitic Infections
- Giardia — waterborne diarrheal illness
- Pinworms — common in children, cause anal itching
- Toxoplasmosis — from cat feces, undercooked meat
- Malaria — mosquito-borne, in endemic regions
- Hookworm, roundworm, tapeworm
- Lice and scabies — ectoparasites
Treatment
Antiparasitic medications vary by organism. Examples include metronidazole (Giardia), albendazole (worms), permethrin (lice/scabies), antimalarials, and others. Specific tests guide the right treatment.
Prevention
- Hand washing
- Food and water safety, especially when traveling
- Cook meat thoroughly
- Wear shoes in soil-contaminated areas
- Use insect repellent and mosquito nets in malaria zones
- Pregnant women avoid changing cat litter (toxoplasmosis)
Medical Disclaimer: This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider with questions about a medical condition. If you are experiencing a medical emergency, call your local emergency number immediately.
References
- CDC. Parasitic Disease Information.