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Host Trace Dominguez discusses the science behind getting a fever when sick. Fevers are integral to effective immune responses and ensure the immune system takes appropriate action against the offending virus or bacteria. Part of the "Uno Dos of Trace" series.
(Source: DCMP)
Viruses are tiny agents that can infect a variety of living organisms, including bacteria, plants, and animals. The Dengue virus is a mosquito-borne viral disease occurring in tropical and subtropical areas. Scientists at the University of California, Berkley have identified a key culprit responsible for the severe symptoms related to Dengue fever.
The body is like a self-supporting hospital, able to deal with its own with wounds, bacterial invasions, fractures, and obstructions to its various passages. Follows the sequence of events over seconds and weeks when skin or bone is damaged, and shows the defensive reactions of blood clotting, fever, and mending of bone fractures.
Mosquitoes spread several viruses, including Dengue, Chikungunya, Yellow Fever, and Zika. Health officials are developing various methods to help reduce the spread of infections. One of those methods is to produce genetically modified mosquitoes that, when released into the wild, reproduce with wild mosquitoes and cause their offspring to die.
Dengue virus, which causes the infectious disease dengue fever, is estimated to infect more than 400 million people every year. It is usually transmitted through mosquitoes. Scientists working to eradicate the disease have discovered that dengue virus is not able to replicate in mosquitoes infected with a bacteria called Wolbachia. The researchers developed a plan to release infected mosquitoes into the wild so that Wolbachia can spread throughout the mosquito population. Part of the "I Contain Multitudes" series.
Timeblazers Sam and Jen go back to a time when ancient Chinese civilizations were using cowrie shells as currency and when buying a water buffalo meant coughing up the animal's weight in coins. They flash forward to the 1800s, when goods could be purchased in exchange for beaver pelts. Then to the middle of the 1400s, when "gold fever" gripped the imaginations of explorers who dreamed of finding the fabled city of El Dorado, but it was the California gold strike in 1849 that brought more than 50,000 prospectors to the West in search of easy riches.
