West Nile is a type of mosquito spread virus.
Often, people live with the infection, but they do not know they have it. In
rare cases, the West Nile virus leads to a severe disease affecting the brain
or spinal cord.
People over 50 years of age pose the greatest risk. Most people
recover completely after the disease but some, especially those who have had a
severe infection, can remain with permanent problems such as seizures, memory loss, or brain damage. Very few people died of this virus.
West Nile: Virus Transmission
Sometimes, mosquitoes transmit the virus to
other animals, such as horses or birds, but you can not get the virus from an
infected animal or if you come in contact with a person who has acquired the
disease.
West Nile virus can only be transmitted through
mosquito bite, organ transplant, or blood transfusion.
Some evidence suggests that West Nile can be
transmitted from a mother to her baby during pregnancy, birth, or
breastfeeding.
West Nile: Symptoms of the viral infection
In general, 80 people out of 100 who have West
Nile have no symptoms. These may begin in the first 15 days after being stung
by a mosquito which carries the virus.
The mild symptoms may include:
l fever
l headache
l tiredness and weakness
l lack of appetite
l pain in the whole body
l rash, usually on the chest
l swelling of the lymph nodes
People who have mild illness caused by West Nile
virus have fever for 5 days, struggle with headache for about 10 days, and
experience a permanent tiredness of more than a month.
Generally, a 50-year-old can experience a
serious form of the disease. This can lead to swelling of the brain
(encephalitis), spinal cord (myelitis), or swelling of the tissues around the
brain and spinal cord (meningitis).
The serious manifestation of West Nile virus is
manifested by:
l severe headache
l high fever
l confusion
l convulsions
l muscle weakness
l paralysis and coma
If you experience such symptoms, you should
immediately get to a doctor and perform blood tests. Antibodies can show if you
were infected with West Nile. Otherwise, you can perform other tests, such as:
Lumbar puncture to look for antibodies or other
signs of the virus in the fluid surrounding the brain and spinal cord.
An MRI (brain imaging) Scan. This is done to
find out if you have encephalitis.
West Nile: Treatment and how to deal with the virus.
Unfortunately, there is no West Nile treatment.
That's why the body has to fight this infection on its own.
If you have a mild form of illness, you can
recover at home. Make sure you drink enough fluids and get enough rest. But the
diagnosis and help of the doctor should not be ignored.
If you present a severe form of West Nile,
symptoms can last for weeks or months, especially if the infection has spread
to the brain, and admission to a hospital is absolutely necessary.
There you can get help in preventing other
complications of the viral infection, such as pneumonia, because you will be
given infusions and you will be connected at support and monitoring devices.
West Nile: Prevention of West Nile infestation
l Use a spray that can protect you from insects when you are outdoors at
the end of spring, summer, and early autumn.
l Wear long-sleeved shirts and trousers if you know you will be in areas
full of mosquitoes or in places where you know the West Nile virus has been
found.
l Do not leave water receptacles open.
l If you are in an area where mosquitoes make their presence felt, stay in
the house at dawn and in the evening when the insects are active.
West Nile: Viral infection during pregnancy
The fact is that pregnant women are more exposed
to this virus and that only because they attract mosquitoes more than ever.
Explanations given by specialists in this regard
aim at the higher temperature of the body in this state as being responsible
for attracting them. It seems that the pregnant woman emanates more volatile
substances from the skin, which are very easily detected by mosquitoes.
There is new evidence suggesting that
infestation with West Nile virus in the first two trimesters of pregnancy may
have serious side effects on fetal development.
Once the mother has been infected, the virus can
reach the baby through trans-placental transmission.
Following the investigation of cases of West
Nile infection during pregnancy, the following congenital maladies were found
in the newborn:
l The palatine wave cleft
l Down syndrome
l Small head at birth
l Extra fingers
It seems that the effects on fetal development
depend on the pregnancy stage in which the woman was infected. If the infection
occurred during the first trimester of pregnancy, the effects appear to be
minimal.
West Nile: Viral infection in children.
According to statistics, there are very few
chances that babies under one year of age to be infected with West Nile virus.
Cases were extremely rare, or even unique in
specific areas.
It is believed that there is a greater
predisposition to contact the virus when the children are active and always in
the continuous exploration of the environment, venturing through areas where there
are many mosquitoes.
Also, following a 20-year analysis of the
evolution of West Nile virus in children, it has been shown that they are not
at higher risk of infection and there have been no deaths in children caused by
this virus.
For example, in just one year, only 3% of the
West Nile viral infection cases were registered in children.
However, doctors caution that any child who has
a low immune system is prone to the West Nile virus contamination. But this
applies to all people.
They argue that both children and adults can
manifest the disease, and there is no other form of presentation. Cases in
children are rarer also because children are generally stronger and healthy and
have an immune system that can cope with this virus.
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