I think this may be the most difficult time I've had writing posts for this blog. I literally cringe every time I write about parasites, particularly parasitic worms. So let's not delay the nastiness any longer--let's get this over with!
Roundworms are one of the most common of all intestinal parasites. In fact, it's estimated that over one-and-a-half-billion people are infected with some form of roundworm. Ew. there are many different types of roundworms--the most common in humans are Trichinella, pinworms, and hookworms.
Let's start with pinworms, and then we'll focus on hookworms and Trichinella the next couple of days.
Pinworms are tiny, white, intestinal parasites that are believed to only target humans. Pinworm eggs move along to the small intestine, where they hatch and grow. Once they become adults, they make their home in the colon. They can live there for several months.
Symptoms of pinworm infection include:
- Insomnia
- Anal itchiness
- Poor appetite
What's really disturbing is that re-infestation can happen continuously, especially in small children, as the eggs are laid around the anus and, oftentimes, the itchiness causes the host to scratch and then transfer the eggs back to the mouth if the hands aren't washed thoroughly or frequently enough.
Transmission is also possible through contaminated toilets, bed linens, clothing, or other surfaces. Pinworm eggs can actually survive on surfaces outside of a human body for up to two weeks!!
Approximately forty million people in the United States are affected with pinworms. Disgusting.
(Picture Credit: Human Parasites Symptoms)