Newswave
Jan 31, 2026

Don’t drink... pss

Nipah Virus: Don’t drink raw date juice

Warns IEDCR as country reports this year’s first death Nipah virus

Health experts yesterday advised people to not drink raw date juice, the main source of the Nipah virus in the country, following the recent death of a woman.

At an event yesterday, the Institute of Epidemiology, Disease Control and Research (IEDCR) told reporters that the 35-year-old woman died from Nipah-induced encephalitis in Rajshahi last week.

Last year, the IEDCR recorded three Nipah virus cases, two of which led to death – one in Naogaon and the other in Faridpur.

"We don't know much about this deadly virus yet. So far, we know that it has around 71 percent fatality rate and raw date juice is the main source of contracting it. So, we must refrain from consuming it," said Prof Tahmina Shirin, director of the IEDCR, while sharing data on the viral infection.

She, however, said consuming the juice of dates or molasses is safe when and if it is boiled [as high temperatures may kill the virus].

According to the World Health Organization, the Nipah virus infection is a zoonotic illness that is transmitted to people from animals and can also be transmitted through contaminated food or directly from person to person.

It causes a range of illnesses from asymptomatic (subclinical) infection to acute respiratory illness and fatal encephalitis. The virus can also cause severe diseases in some animals. 

In Bangladesh and India, the consumption of fruits or fruit products (such as raw date palm juice) contaminated with the urine or saliva from infected fruit bats were the likeliest sources of the virus.

According to the IEDCR, infected people initially develop symptoms such as fever, headaches, myalgia (muscle pain), vomiting and sore throat. An undetected patient can even fall into a coma within 24 to 48 hours of contracting the virus.

There are currently no drugs or vaccines that specifically target Nipah virus infection. The primary treatment for humans is supportive care.

Dr Sharmin Sultana, senior scientific officer at the IEDCR, presented the highlights on Nipah surveillance in Bangladesh.

The virus was first identified as the cause of an encephalitis outbreak in 2001 in Meherpur.

In 2006, the Nipah Surveillance and Laboratory was established at the IEDCR.

Since then, 330 cases of the infection were documented. Of those infected, 231 died, indicating a very high mortality rate – 71 percent.

At least 139 of those infected contracted it from bats through date juice, while 46 others from another human carrier.

Closing in on protection against deadly Nipah virus

Nipah virus is among the world’s deadliest pathogens, yet no approved countermeasures currently exist. CEPI is working to change that through its $150 million Nipah virus R&D portfolio spanning the full preparedness chain—from countermeasure development and manufacturing to anticipating a Nipah-like Disease X from the same paramyxovirus family—including funding the world’s most advanced Nipah vaccine candidate, now in Phase II trials in Bangladesh.

For this Innovations for Impact story, we spoke with icddr,b’s Dr K Zaman, who is leading the first-ever Phase II Nipah vaccine trials, and CEPI’s Nipah programme lead, Rick Jarman, to explore how CEPI is helping the world prepare to confront one of the most lethal viral threats.
___________

Fruit juice—seemingly harmless and enjoyed the world over. But for some people in Bangladesh, drinking a popular local juice can come with deadly consequences.

“Raw date juice is a well-enjoyed drink among rural communities in Bangladesh. But many don’t realise it can be contaminated by bats who carry the Nipah virus,” said Dr K Zaman, Principal Investigator of the first-ever Phase II CEPI-funded Nipah vaccine trial at Bangladesh’s icddr,b, a health research institution. “People drink the juice and become infected.”

This simple thirst-quenching accident can prove fatal. Nipah virus kills up to 75 percent of the people it infects. It is one of the world’s most lethal viral pathogens.

It’s this extremely high death rate, and the fact that Nipah has the potential to mutate and spread to many more parts of the world, that is driving scientists to develop a protective vaccine.

One potential vaccine, developed in a CEPI-funded partnership with the University of Oxford and its ChAdOx vaccine platform, was the first in the world to begin mid-stage clinical trials in Bangladesh in late 2025.

 
photo of person sat down receiving Nipah vaccine by health worker

Dr Zaman, who has overseen 78 clinical trials at icddr,b, said he hopes this trial will generate new knowledge on how a future Nipah vaccine could save lives in Bangladesh.

And it’s not just Bangladesh that could one day benefit from this vaccine. Since its discovery in 1998, Nipah outbreaks have been confined to South and Southeast Asia. But the virus’s natural hosts—fruit bats—range across regions that are home to more than two billion people. As human activity pushes deeper into bat habitats, the risk of spillover is only growing.

Rick Jarman, Nipah programme lead at CEPI, said the fact that such a large range of domestic and farm animals are susceptible to Nipah virus from bats is a major concern, as Nipah can infect humans both through contaminated food and direct contact with infected animals. Each time it spills over, the risk of mutation and potentially increased transmissibility grows, he said.

 
infographic showing nipah transmission cycle with arrows

CEPI is the world’s largest funder of Nipah research and development. Its $150 million portfolio—including two Nipah vaccine candidates and a monoclonal antibody—spans the whole preparedness chain, from countermeasure development and manufacture, to preparing for a novel Nipah-like Disease X—an as-yet unknown pathogen with outbreak potential—that could emerge from the same paramyxovirus viral family.

A big part of this preparedness comes from CEPI’s partnership with the University of Oxford and Serum Institute of India—the world’s largest vaccine manufacturer and part of CEPI’s Vaccine Manufacturing Network. This collaboration not only enabled Serum to manufacture Oxford’s ChAdOx1 NipahB vaccine candidate for the Phase II Bangladesh trials, but it also aims to create an investigational-ready reserve of up to 100,000 doses of the vaccine. These doses could then be deployed under a research protocol in an outbreak.

Jarman described this investigational reserve as CEPI’s “number one priority” for Nipah virus over the next year or two. With the potential for experimental vaccine doses at the ready in a region where the virus persistently pops up, it becomes possible to launch an emergency trial that can advance the candidate toward licensure and potentially – if the vaccine is indeed effective – provide protection to high-risk individuals.

Other posts