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Toxic marine Dinoflagellate (Karenia brevis) Toxic marine Dinoflagellate (Karenia brevis) that causes red tide. This gymnodinioid dinoflagellate has an equatorial groove containing one undulating flagellum and a second flagellum that trails behind the cell. They produce the brevetoxin which affects the central nervous system of fish, and people can become ill with neurotoxic shellfish poisoning when they eat shellfish that have accumulated brevetoxin.

Giardiasis is a diarrheal illness caused by the parasite Giardia intestinalis (also known as Giardia lamblia or Giardia duodenalis). A parasite is an organism that feeds off of another to survive. Giardiasis is a global disease. It infects nearly 2% of adults and 6% to 8% of children in developed countries worldwide. Nearly 33% of people in developing countries have had giardiasis. In the United States, Giardia infection is the most common intestinal parasitic disease affecting humans.

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This detailed model of the Ebola virus is about as terrifying as you’d expect

This detailed model of the Ebola virus is about as terrifying as you’d expect For those really concerned about the ebola pandemic Click this image to buy an Ebola treatment that works. #ebola #ebolavirus #ebolausa Dont wait until it's too late or sold out -->

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25 Facts That Will Boggle Your Mind

A “dancing plague” killed people in Strasbourg in 1518. A “dancing mania” began in July 1518, when a woman, Frau Troffea, began to dance fervently in a street in Strasbourg for about four to six days. Within a week, 34 others had joined, and within a month, there were around 400 dancers. Some of these people eventually died from heart attack, stroke, or exhaustion.