A cytokine storm is a potentially fatal immune reaction that results from an uncontrolled positive feedback loop between immune cells and cytokines, proteins that facilitate intercellular communication. During an immune response, cytokines prompt immune cells to travel to the site of infection as well as stimulate the production of more cytokines. The body regulates this process, but in some cases it becomes inappropriately elevated. What are the primary symptoms of a cytokine storm?
Louisa May Alcott
Back in the day
Inspired by his whaling experiences on the South Seas, Herman Melville penned Moby-Dick, the now famed tale of a deranged whaling captain's obsessive voyage to find and destroy the great white whale to whom he lost his leg. The novel is at once an exciting sea story, a sociological critique of American prejudices, a repository of information about whaling, and a philosophical inquiry into the nature of good and evil. What may have inspired Melville to name his whale Moby-Dick?
Born on a day like today
Monet was a French painter who helped found the Impressionist movement in the late 19th century. His works include renowned en plein air, or outdoor, paintings, which capture natural landscapes with accents of sunlight and vibrant colors. He is also known for painting the same subject repeatedly, at different times of day and in different seasons, to show how changing light affects form. Where did Monet paint his famous Water Lilies series?