Articles on Parasites

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Cyclosporiasis can cause severe gastrointestinal distress, including explosive diarrhea. wildpixel/iStock via Getty Images Plus

Cyclosporiasis sickens some people worse – why your diarrhea could be more explosive than others

Explosive diarrhea has been spreading across the US, and the parasite that causes the disease has already sickened thousands – and counting.
The U.S.-Mexico beef market has taken a massive hit from the screwworm parasite, which has spread from Mexico to Texas and New Mexico. AP Photo/Isabel Mateos, file

Soaring US beef prices likely to rise further thanks to trade tensions and disease outbreaks

The tightly integrated North American beef market, under pressure from drought and the spread of the screwworm, could get further roiled by trade uncertainty.
In the aquatic or frozen habitats of the North and South Poles, life is dominated by single-celled micro-organisms. Giant viruses sit at the top of the food pyramid. (Unsplash/Henrique Setim)

The giant viruses that orchestrate life in the polar regions

Long overlooked because of their size, giant viruses are now redefining the frontiers of microbiology.
The difficult-to-detect meningeal worm is spread by white-tailed deer and is a notorious killer of moose. AP Photo/Jim Cole, File

Parasitic worms bury themselves in the brains of moose and elk – a new test can help diagnose these animals to prevent disease spread

White-tailed deer host these brain worms, but they don’t actually get the disease, which makes it harder for biologists to monitor its prevalence.

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