
As a deadly Ebola outbreak continues in West
Africa, health officials are working to calm fears about how the virus
spreads, while encouraging those with symptoms to get medical care.
Typically, outbreaks of the disease have been in other parts of the
continent, not in West Africa.
HOW IS EBOLA SPREAD?
By direct contact with an Ebola patient’s
blood or other bodily fluids like urine, saliva, and sweat. The highest
concentration of virus is thought to be in blood, vomit and diarrhea.
The most vulnerable people are health care
workers and family members or others who care for the sick. Because of
the deadly nature of the disease, health workers should wear protective
gear, especially when handling things like contaminated syringes. Such
equipment is not commonly available in Africa, and the disease isn’t
always quickly recognized. Symptoms are similar to other diseases like
malaria and cholera.
Someone can also get infected by handling
soiled clothing or bed sheets without protection, and then touching
their nose, mouth or eyes. People can also catch the disease by eating
infected bushmeat, as Ebola can sicken animals including bats,
chimpanzees and antelopes. Scientist think fruit bats might be the
source of the virus, but aren’t certain.
CAN EBOLA SPREAD IN THE AIR, LIKE FLU OR TUBERCULOSIS?
There is no evidence Ebola can be spread in
the air by sneezing or coughing. “If there was a role for airborne
transmission, we’d be seeing a lot more cases and deaths by now,” said
Ben Neuman, a virologist at Britain’s University of Reading.
Ebola is in some ways similar to the AIDS
virus because it is spread through bodily fluids, according to Stephen
Morse, of Columbia University’s Mailman School of Public Health. Unlike
those infected with HIV, those with the Ebola virus are considered
infectious only when they show symptoms, which include fever, vomiting
and diarrhea.
CAN THE SPREAD OF EBOLA BE STOPPED?
Yes, by isolating anyone with symptoms while
testing is done, taking precautions while providing them medical care
and tracking down anyone they were in close contact with when they got
sick. Those who have had direct contact with an Ebola patient are
advised to take their temperature twice a day for three weeks, the
incubation period for the disease. If they show symptoms, they should
then be isolated and tested.
Ebola first appeared nearly 40 years ago. In
past Ebola outbreaks, many cases have been linked to people burying
their loved ones, involving ritual cleansing of the body and kissing the
body. The World Health Organization recommends that only trained
personnel handle the bodies of Ebola victims.
“We know how to stop Ebola,” said Gregory
Hartl, a WHO spokesman. “We have stopped all previous outbreaks in the
past using old-fashioned methods.”
“From what we’ve seen, there isn’t any reason
to think we can’t stop the outbreak in West Africa using what we have
done in the past.”
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