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Sierra Leone's top Ebola virus doctor, Sheikh Umar Khan, died a few days after contracting the lethal disease which has claimed the lives of 672 people in Western Africa, health authorities in Sierra Leone announced Wednesday. Khan, 39, died Tuesday at Kailahun hospital, in eastern Sierra Leone, an official statement said.
The virologist, who headed the Ebola centre in Kenema, 300 km east of the capital, Freetown, was regarded as a national hero after treating more than 100 people with the disease. His death followed that of a colleague in Liberia July 27, bringing to two the number of doctors killed by Ebola in that country. Liberia has also lost about 15 health workers and one of its most important doctors, Samuel Brisbane, who worked at the John F. Kennedy Hospital in Monrovia where Ebola patients were treated and isolated. (Read: Sierra Leone Ebola update: 46 dead, 163 confirmed cases)
The Ebola epidemic in Guinea, Sierra Leone and Liberia has infected 1,201 people and killed 672 since the first case was reported in Guinea March 22, according to the World Health Organisation. All the efforts of these countries to control the disease, for which there is no vaccine, have failed so far and the virus has continued to spread. Last Thursday, Nigeria, Africa's most populated country, registered its first victim, a man who had travelled to Liberia and died a few days after his return. (Read:Ebola bug's secret mechanism revealed)
Nigeria has suspended operations of the ASKY airline in which the victim travelled, and its main air carrier, Arik Air, has cancelled all flights to Liberia and Sierra Leone. Ebola causes serious haemorrhage and has a mortality rate of about 90 percent. The disease is transmitted by direct contact with infected blood or body fluids and is considered a threat to world health amid fears it might be used as a biological weapon. (Read:Revealed how our body keeps viruses at bay)
What is ebola virus?
The Ebola virus disease (EVD), formerly known as Ebola hemorrhagic fever is a severe condition caused by a virus from the Filoviridae family. Known to be a condition that is transmitted from animals to humans, this virus spreads through direct contact with the bodily fluids of an infected person or animal.
How is it transmitted? What are its causes?
According to scientists there are five different types of the virus, all of which have the potential to infect humans. According to the WHO (World Health Organisation) this disease can be transmitted from close contact with the blood, secretions, organs or other bodily fluids of infected animals. In humans the disease can be transmitted by the following methods:
Who is most likely to get infected?
Dr Ratan Kumar Vaish, Senior Consultant, Department of Internal medicine, Rockland Group of Hospitals, Delhi-NCR says, 'The condition is contagious, so migratory populations are most likely to get infected and transmit the virus. Interestingly, this condition is also a hospital acquired infection and is commonly transmitted to hospital staff. Apart from that, high risk individuals include diabetics, immunocompromised patients, patients with kidney and liver failure and HIV infected people.' Read more about Ebola virus causes, symptoms, diagnosis, treatment, prognosis and prevention
With inputs from IANS
Photo source: Getty images
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