9 worst virus world
have you heard about Ebola and now everyone knows to Zika, but there are many dangerous virus still causes terrible problems.
You've heard of Ebola and now all Zika who are known, but there are many dangerous virus still causes terrible problems. Recently, the World Health Organization (WHO) has had discussions on the emerging pathogens capable of leading to outbreaks of serious disease in the near future. These are very dangerous viruses.
Crimean-Congo Hemorrhagic Fever
According to Centers for Disease Control and Prevention (CDC), is transmitted mainly from ticks to humans and pets, Crimean-Congo hemorrhagic fever export for the first time in the Crimea in 1944, where it is called dengue Crimea. Then, when it was recognized in 1969 as the culprit for the disease in Congo, its name was changed. According to WHO, dengue fever, Crimea-Congo with mortality up to 40% and there is no vaccine to prevent it.
The symptoms come on suddenly and include headache, high fever, vomiting, back pain, joint pain and stomach pain. As the disease continues, there may be serious bruises and nosebleeds and bleeding in the face, mouth and throat.
In some cases, the virus can be transmitted from person to person by close contact with blood or body fluids infected. Crimean-Congo hemorrhagic fever appeared in many places including Africa, Central Asia, Middle East, Eastern and Southern Europe and India.
The disease caused by the Ebola virus
Ebola The first cases known as dengue blood Ebola occurred in 1976. According to the WHO report, although the first epidemics occurred in a remote village near the tropical rain forests of Central Africa, many recent outbreaks also occurred in urban areas market. This serious viral disease transmitted from wild animals to humans and then spread from person to person. The average mortality rate is 50%, but in some cases up to 90% service.
Ebola Virus.
No Ebola vaccines but clinical trials were evaluated.
Marburg haemorrhagic fever
epidemics Two mystery happened in Europe in the 1960s was the lab staff discovered when they studied retrospective of African monkeys imported from Uganda. As an Ebola filovirus from them, it is named after the first discovery in Marburg (a German city). Natural hosts of the virus are under their fruit bats Pteropodidae. The virus is transmitted from bats to humans and then spread through contact between people.
The symptoms include high fever, headache and muscle pain, severe sudden starts and progresses rapidly to eating disorders chemical, coma and bleeding. In the case of death (up to 88% of cases) occur in less than 10 days after the onset of symptoms. There is no preventive vaccine or treatment. WHO has recorded outbreaks in Angola, Democratic Republic of the Congo, Kenya, South Africa and Uganda.
Lassa Fever
According to WHO, about 80% of people infected with Lassa virus never have symptoms, so it is difficult to detect virus. This is a disease transmitted from animals to humans through contact with food or household items contaminated mouse urine or feces. But the disease can also spread from person to person through blood or infected fluids.
For those who have symptoms, they are usually mild and include mild fever and body weakness. Those with more severe symptoms may be intraocular hemorrhage, bleeding gums and nose, as well as vomiting, respiratory distress, swelling of the face, deafness and severe pain. Only about 1% of cases of Lassa virus die.
The disease SARS coronavirus MERS and
Respiratory Syndrome in the Middle East (MERS) and syndrome of severe acute respiratory (SARS) coronavirus is part of their (usually viruses cause upper respiratory disease). Whether the virus appears to be transmitted from infected camel, both diseases are easily spread when people sneeze and cough.
According to the CDC, SARS was first reported in Asia in 2003, but the disease spread rapidly across the globe and in many cases are not reported since 2004.
However, MERS was first reported in 2012 and has since spread to other countries. According to WHO, about 36% of patients died MERS. There is no preventive vaccine or treatment.
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