West Nile fever, which has been in discussion recently, is spread by the bite of which species of mosquito ?a)Aedes aegyptib)Aedes albopictusc)Anopheles gambiaed)Culexe)None of the above/More than one of the aboveCorrect answer is option 'D'. Can you explain this answer?

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West Nile fever, which has been in discussion recently, is spread by the bite of which species of mosquito ?

a)
Aedes aegypti
b)
Aedes albopictus
c)
Anopheles gambiae
d)
Culex
e)
None of the above/More than one of the above

Correct answer is option 'D'. Can you explain this answer?

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West Nile fever, which has been in discussion recently, is spread by ...

Recently, after the death of a person due to mosquito-borne West Nile fever in Pananchery Panchayat of Thrissur (Kerala), the disease came into the limelight again.

Transmission of virus

The Culex species of mosquitoes serves as the major carrier for transmission.
It is transmitted through infected mosquitoes to humans, animals and birds.
Mosquitoes become infected when they feed on infected birds and circulate the virus in their blood for a few days.
The virus eventually moves into the mosquito's salivary glands.
When mosquitoes bite, the virus enters the body of humans and animals where there is a rapid increase in the number of viruses that cause disease.
The virus can also be spread by blood transfusion, from an infected mother to her child, or through exposure to the virus in laboratories.

IMPORTANT FACTS

West Nile Virus :

West Nile virus is a mosquito-borne, single-stranded RNA virus.
As per WHO, it is a member of the flavivirus genus and belongs to the Japanese Encephalitis antigenic complex of the family Flaviviridae.
According to the World Health Organisation (WHO), the first case of West Nile was reported in 1937.

Symptoms :

In 80% of the infected people the disease is asymptomatic.
Symptoms seen in 20% of cases include fever, headache, fatigue, body aches, nausea, rash and swollen glands.
Severe infection can lead to encephalitis, meningitis, paralysis, and even death.
It usually becomes fatal in individuals with co-morbidities and in immune-compromised individuals (e.g. transplant patients).

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West Nile fever, which has been in discussion recently, is spread by ...

Recently, after the death of a person due to mosquito-borne West Nile fever in Pananchery Panchayat of Thrissur (Kerala), the disease came into the limelight again.

Transmission of virus

The Culex species of mosquitoes serves as the major carrier for transmission.
It is transmitted through infected mosquitoes to humans, animals and birds.
Mosquitoes become infected when they feed on infected birds and circulate the virus in their blood for a few days.
The virus eventually moves into the mosquito's salivary glands.
When mosquitoes bite, the virus enters the body of humans and animals where there is a rapid increase in the number of viruses that cause disease.
The virus can also be spread by blood transfusion, from an infected mother to her child, or through exposure to the virus in laboratories.

IMPORTANT FACTS

West Nile Virus :

West Nile virus is a mosquito-borne, single-stranded RNA virus.
As per WHO, it is a member of the flavivirus genus and belongs to the Japanese Encephalitis antigenic complex of the family Flaviviridae.
According to the World Health Organisation (WHO), the first case of West Nile was reported in 1937.

Symptoms :

In 80% of the infected people the disease is asymptomatic.
Symptoms seen in 20% of cases include fever, headache, fatigue, body aches, nausea, rash and swollen glands.
Severe infection can lead to encephalitis, meningitis, paralysis, and even death.
It usually becomes fatal in individuals with co-morbidities and in immune-compromised individuals (e.g. transplant patients).

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West Nile fever, which has been in discussion recently, is spread by the bite of which species of mosquito ?a)Aedes aegyptib)Aedes albopictusc)Anopheles gambiaed)Culexe)None of the above/More than one of the aboveCorrect answer is option 'D'. Can you explain this answer?

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