It is an contagious
complex virology and genotype, (also known as Ebola hemorrhagic fever) usually
fatal disease noticed by high fever, vomiting, diarrhea and severe internal
bleeding, spread by contact with infected body fluids by a filovirus ( Ebola
virus ), whose normal host species is unknown.
Currently it’s the most deadly and brutal disease that is being
experienced by mankind .
Journalists and
doctors who have watched people dye of this disease describe as horrifying
watching them “dissolve”
TRAETMENT
Symptoms
usually become visible between two and 21 days after contact. According the WHO,
treatments include dealing the patient's electrolytes and fluids, kidney
function, as well as blood pressure all of which are in jeopardy as the
infected bleed out of organs and even blood vessels.
Several
American missionaries working to disinfect doctors and nurses operating in
suits have contracted Ebola and the chief doctor fighting the outbreak in
Sierra Leone, Dr. Sheik Umar Khan, recently caught the virus while treating
others and died.
Ebola virus
infections can be diagnosed definitively in a laboratory through several types
of tests:
·
antibody-capture
enzyme-linked immunosorbent assay (ELISA)
·
antigen
detection tests
·
serum
neutralization test
·
reverse
transcriptase polymerase chain reaction (RT-PCR) assay
·
electron
microscopy
·
virus
isolation by cell culture.
Samples from
patients are an extreme biohazard risk; testing should be conducted under
maximum biological containment conditions.
There is No
licensed vaccine for EVD is available. Several vaccines are being tested, but
none are available for clinical use.
Severely ill
patients require intensive supportive care. Patients are frequently dehydrated
and require oral rehydration with solutions containing electrolytes or
intravenous fluids.
No specific
treatment is available. New drug therapies are being evaluated.
TYPES OF EBOLA
There are
five known strains of Ebola, which first manifested itself in humans in the
1976 in Sudan and in a village in Zaire near the Ebola River, from which the
disease draws its name. Four of the five have caused disease in humans, while
the fifth, Ebola Reston, caused disease only in primates. The Reston strain is
named for Reston, Virginia where the strain was discovered in a commercial
monkey house in 1989. It killed hundreds of monkeys, and many more were
euthanized, but never made the jump to h
·
Bundibugyo ebolavirus (BDBV)
·
Zaire
ebolavirus (EBOV)
·
Reston
ebolavirus (RESTV)
·
Sudan
ebolavirus (SUDV)
·
Taï
Forest ebolavirus (TAFV). uman beings.
WHO IS AT RISK
The virus is
not airborne, which means those in close contact can be infected and are most
at risk. A person sitting next to an infected person, even if they are
contagious, is not extremely likely to be infected.
Health
workers and caregivers of the sick are particularly at risk for the disease
because they work in close contact with infected patients during the final
stages of the disease when the virus can cause internal and external bleeding.
In this
outbreak alone, more than 100 health workers have been infected and at least 50
of them have died, according to the WHO.
REDUCING THE RISK OF EBOLA INFECTION
IN PEOPLE
In the
absence of effective treatment and a human vaccine, raising awareness of the
risk factors for Ebola infection and the protective measures individuals can
take is the only way to reduce human infection and death.
In Africa,
during EVD outbreaks, educational public health messages for risk reduction should
focus on several factors:
Reducing the
risk of wildlife-to-human transmission from contact with infected fruit bats or
monkeys/apes and the consumption of their raw meat. Animals should be handled
with gloves and other appropriate protective clothing. Animal products (blood
and meat) should be thoroughly cooked before consumption.
Reducing the
risk of human-to-human transmission in the community arising from direct or
close contact with infected patients, particularly with their bodily fluids.
Close physical contact with Ebola patients should be avoided. Gloves and
appropriate personal protective equipment should be worn when taking care of
ill patients at home. Regular hand washing is required after visiting patients
in hospital, as well as after taking care of patients at home.
Communities
affected by Ebola should inform the population about the nature of the disease
and about outbreak containment measures, including burial of the dead. People
who have died from Ebola should be promptly and safely buried.
Pig farms in
Africa can play a role in the amplification of infection because of the
presence of fruit bats on these farms. Appropriate biosecurity measures should
be in place to limit transmission. For RESTV, educational public health
messages should focus on reducing the risk of pig-to-human transmission as a
result of unsafe animal husbandry and slaughtering practices, and unsafe
consumption of fresh blood, raw milk or animal tissue. Gloves and other
appropriate protective clothing should be worn when handling sick animals or
their tissues and when slaughtering animals. In regions where RESTV has been
reported in pigs, all animal products (blood, meat and milk) should be thoroughly
cooked before eating.
Controlling infection in health-care
settings
Human-to-human
transmission of the Ebola virus is primarily associated with direct or indirect
contact with blood and body fluids. Transmission to health-care workers has
been reported when appropriate infection control measures have not been
observed.
It is not
always possible to identify patients with EBV early because initial symptoms
may be non-specific. For this reason, it is important that health-care workers
apply standard precautions consistently with all patients – regardless of their
diagnosis – in all work practices at all times. These include basic hand
hygiene, respiratory hygiene, the use of personal protective equipment
(according to the risk of splashes or other contact with infected materials),
safe injection practices and safe burial practices.
Health-care
workers caring for patients with suspected or confirmed Ebola virus should
apply, in addition to standard precautions, other infection control measures to
avoid any exposure to the patient’s blood and body fluids and direct
unprotected contact with the possibly contaminated environment. When in close
contact (within 1 metre) of patients with EBV, health-care workers should wear
face protection (a face shield or a medical mask and goggles), a clean,
non-sterile long-sleeved gown, and gloves (sterile gloves for some procedures).
Laboratory
workers are also at risk. Samples taken from suspected human and animal Ebola
cases for diagnosis should be handled by trained staff and processed in
suitably equipped laboratories.
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