Give The names of Three Viral Diseases of human beings.why is it difficult to make medicine of a viral disaeses
Answers
Answer:
Marburg virus
The Marburg virus causes hemorrhagic fever in humans and non-human primates.(Image credit: ROGER HARRIS/SCIENCE PHOTO LIBRARY via Getty Images)
Scientists identified Marburg virus in 1967, when small outbreaks occurred among lab workers in Germany who were exposed to infected monkeys imported from Uganda. Marburg virus is similar to Ebola in that both can cause hemorrhagic fever, meaning that infected people develop high fevers and bleeding throughout the body that can lead to shock, organ failure and death.
The mortality rate in the first outbreak was 25%, but it was more than 80% in the 1998-2000 outbreak in the Democratic Republic of Congo, as well as in the 2005 outbreak in Angola, according to the World Health Organization (WHO).
Ebola virus
Microscopic image of an Ebola virus.(Image credit: Shutterstock)
The first known Ebola outbreaks in humans struck simultaneously in the Republic of the Sudan and the Democratic Republic of Congo in 1976. Ebola is spread through contact with blood or other body fluids, or tissue from infected people or animals. The known strains vary dramatically in their deadliness, Elke Muhlberger, an Ebola virus expert and associate professor of microbiology at Boston University, told Live Science.
One strain, Ebola Reston, doesn't even make people sick. But for the Bundibugyo strain, the fatality rate is up to 50%, and it is up to 71% for the Sudan strain, according to WHO.
The outbreak underway in West Africa began in early 2014, and is the largest and most complex outbreak of the disease to date, according to WHO.
Rabies
This image of the rabies virus, taken through an electron microscope, shows particles of the virus itself, as well as the round structures called Negri bodies, which contain viral proteins.(Image credit: CDC/ Dr. Fred Murphy)
Although rabies vaccines for pets, which were introduced in the 1920s, have helped make the disease exceedingly rare in the developed world, this condition remains a serious problem in India and parts of Africa.
"It destroys the brain, it's a really, really bad disease," Muhlberger said. "We have a vaccine against rabies, and we have antibodies that work against rabies, so if someone gets bitten by a rabid animal we can treat this person," she said.
However, she said, "if you don't get treatment, there's a 100% possibility you will die."
Explanation:
Answer:
Ebola
Rabies
Smallpox
Explanation:
It is difficult to make medicine for viral diseases as the viruses have a mechanism of camoflaging and also it takes a long time for the body to adjust to make antibodies to fight the viruses.
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