What is Nipah Virus? Causes, Symptoms, Transmission, Treatment, Prevention & More

Nipah Virus: Nipah Virus causes severe infection in humans and animals and get its name from the village of Malaysia where first time it was first identified. Let us study through this article about the Nipah Virus, symptoms of Nipah Virus infection, prevention and cure etc.

Sep 12, 2023, 12:52 IST
All About the Nipah Virus
All About the Nipah Virus

Nipah Virus 2023: On Monday, the Kozhikode Health Department issued a health warning. This happened after two 'unnatural' fatalities in the district over a two-week period were thought to be caused by the Nipah virus.

Nipah Virus is an emerging infectious disease which has disturbing abilities and has a high fatality rate. It can cause severe disease to both humans and animals. Let us study about Nipah virus, how it is transmitted, its symptoms, prevention and cure through this article.

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What is the Nipah Virus?

Nipah virus is an infectious disease and initially, it was discovered when it caused an outbreak of brain fever among pig farmers in Malaysia and Singapore in 1998 and 1999 according to the Centers for Disease Control and Prevention (CDC).

According to the World Health Organisation (WHO), the virus is thought to naturally infect fruit bats but it can also infect pigs and other domesticated animals like dogs, cats, goats etc. This infection can affect human beings and the virus can also spread from person to person. In India, it was first reported in 2001 and in Bangladesh in 2004.

The organism which causes Nipah Virus (NiV) encephalitis is an RNA or Ribonucleic acid virus of the family Paramyxoviridae, genus Henipavirus, and is closely related to Hendra virus. Also, Pteropus bats (fruit-eating species, popularly known as flying foxes) are supposed to be the natural hosts of the virus.

Do you know that Henipaviruses are bat-borne viruses, which include the Hendra virus (HeV) and the Nipah virus (NiV). They cause severe and often fatal diseases in humans and animals. Hendra virus causes infection in horses and then in humans which was first reported in Australia in 1994.

The Nipah virus has been listed in the World Organisation for Animal Health (OIE) Terrestrial Animal Health Code and must be reported to the OIE (OIE Terrestrial Animal Health Code).

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How Nipah Virus spread or transmitted?

Nipah Virus is transmitted to humans through direct contact with infected bats, infected pigs or other NiV-infected people. In Malaysia and Singapore, humans are infected with Nipah Virus only through close contact with infected pigs which came in contact with the bats that had lost their habitats due to deforestation.

The disease spreads through fruit bats or flying foxes who are natural reservoir hosts of the Nipah and Hendra Viruses. Do you know that the virus is present in bat urine, bat faeces, saliva and birthing fluids?

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Even transmission between farms may be due to fomites or carrying the virus on clothing, equipment, boots vehicles etc.

In Bangladesh and India, this virus is transmitted from bats while drinking raw palm sap contaminated with bat excrement or climbing trees coated in the same or through a virus-infected person.

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Symptoms of Nipah Virus infection

  • Fever, Headache, drowsiness, vomiting and fainting.
  • Disorientation, mental confusion.
  • Encephalitis or inflammation of the brain.
  • It typically takes five to fourteen days for symptoms of an infection to start to appear.
  • An infected person or animal may fall unconscious or lead to coma.
  • According to CDS, long-term side effects among survivors can include convulsions and personality changes.
  • Death may happen as brain fever develops at the final stage.

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Prevention and Cure

Infection caused by to Nipah virus is an emerging disease and till now there is no drug to treat the illness and no vaccine to prevent it. So, we should take proper precautions to prevent the spread of the disease.

  • Avoid consuming raw fruits contaminated by bats. Consume well-cooked, clean food.
  • Consumption of contaminated date palms including toddy should also be avoided.
  • Avoid contact with pigs and pig handlers.
  • Maintain personal hygiene and intensive hand washing practices.
  • Medical officials treating NiV-infected patients should take proper precautions like washing hands, using a gown, or cap mask, wearing gloves etc.
  • Use an N95 mask while travelling or working in public places to avoid person-to-person transmission.
  • If you feel uneasiness when in and around an infected region, get yourself tested immediately.

The Nipah virus is a bat-borne virus that infects people and other animals and is known to have a high fatality rate. There is currently no drug or vaccination available to treat it. Avoiding infected animals or locations where the Nipah virus is known to be spreading as well as using protective gear and sanitizing surfaces are all part of the prevention strategy.

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