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Nipah virus (NiV) is a rare but serious viral disease that can infect humans and animals. It is known for causing severe illness with a high fatality rate.

Key facts
 • Virus family: Paramyxoviridae
 • Natural reservoir: Fruit bats (Pteropus species)
 • First identified: 1998–1999 in Malaysia

How it spreads
 • Direct contact with infected bats or pigs
 • Consumption of contaminated food (e.g., raw date palm sap)
 • Human-to-human transmission through close contact with bodily fluids

Symptoms
 • Early: fever, headache, muscle pain, vomiting, sore throat
 • Severe: brain inflammation (encephalitis), confusion, seizures, coma
 • Some patients may also develop respiratory symptoms

Severity
 • Fatality rate: Approximately 40–75%, depending on the outbreak and healthcare access
 • Survivors may have long-term neurological complications

Treatment & prevention
 • No specific cure or vaccine currently available
 • Treatment is supportive care only
 • Prevention focuses on:
 • Avoiding contact with sick animals
 • Not consuming raw or unprotected fruit products in affected regions
 • Strict infection control in healthcare settings

Where it occurs
 • Mostly reported in South and Southeast Asia, especially Bangladesh and India, with occasional outbreaks elsewhere.

Key verified points:

• India has reported a Nipah virus outbreak.
Health authorities in the eastern state of West Bengal have confirmed five people infected with the Nipah virus, including healthcare workers.  

• Nearly 100 people have been quarantined.
Officials have placed around 100 close contacts of the confirmed cases under quarantine or home isolation as a precautionary public health measure.  

• The outbreak appears centred around a hospital near Kolkata.
Several of the infected are medical professionals linked to a private hospital in the Barasat area near Kolkata, and additional patients have been transferred to specialized infectious disease facilities.  

• Countries in the region are monitoring travellers.
In response to this outbreak, some neighbouring countries including Thailand have begun additional health screening for travellers arriving from India.  

Context on Nipah virus severity:
The virus itself is considered serious due to its high fatality rate and lack of a specific cure or vaccine, but spread tends to require close contact with infected people or animals rather than casual community transmission.  

Conclusion:
Yes — reports that “India’s Nipah virus outbreak leaves five infected and nearly 100 quarantined” are consistent with multiple independent news sources and reflect the current situation as of late January 2026.

Confirmed facts:

• Cases reported:
Several reliable sources report that five people have been confirmed infected with the Nipah virus in the eastern Indian state of West Bengal, including healthcare workers at a hospital near Kolkata.  

• Quarantines instituted:
Authorities have placed around 100 people under quarantine or home isolation as part of contact tracing and containment efforts.  

• Public health response:
Health officials are monitoring the outbreak closely, with contact tracing, quarantine measures, and heightened surveillance — including screening at some airports in neighbouring countries — being reported.  

Important nuance from official sources

There are also official statements suggesting lower confirmed case counts in some reporting, where specialists noted that only two patients have tested positive so far but a larger number of contacts (around 190) have been quarantined pending results.  

Summary:
The widely shared statement that “India’s deadly Nipah virus outbreak leaves over 5 infected and hundreds quarantined” broadly reflects current media reporting about the situation in West Bengal, but official health sources may still be updating total case counts. At minimum, multiple outlets cite five confirmed infections and approximately 100 quarantined contacts in connection with the outbreak.