Health officials are investigating a recent cluster of Nipah virus cases in West Bengal, India, raising global concern about the re-emergence of this deadly zoonotic disease [[1]]. the virus, carried by bats and capable of transmitting to humans and other animals, is considered a priority threat by the World Health Organization due to its high fatality rate and potential for widespread outbreaks [[2]]. While the current risk of expansion is assessed as low, the lack of approved vaccines or treatments underscores the urgent need for continued monitoring and preventative measures [[3]].
The Nipah virus, a highly lethal zoonotic pathogen, is a priority disease according to the World Health Organization (WHO) due to its potential to cause severe outbreaks. This designation highlights the critical need for increased surveillance and preparedness against emerging infectious diseases. Currently, there are no vaccines available to prevent infection, nor is there a specific antiviral treatment.
The virus is back in focus following confirmation of five new cases in the state of West Bengal in Asia, with one case considered severe, health authorities have reported.
While the number of cases in the country remains limited, the virus’s ability to infect both humans and animals makes it a significant public health threat. The WHO reports that preventing its spread relies heavily on systematic cleaning and disinfection of pig farms.
The WHO currently assesses the risk of Nipah virus expansion in India as “low.” However, officials emphasize the importance of continued vigilance and monitoring for new cases.
“India has the capacity to contain these outbreaks, as has been demonstrated in past instances,” a WHO spokesperson told EFE news agency.
Since learning of the recent cases, the WHO has been in close contact with Indian health authorities at both the local and national levels to conduct risk assessments and provide any necessary technical support.
The agency also noted that, so far, there is no evidence of increased human-to-human transmission. The virus can also spread through contact with animals, such as fruit bats or pigs, and through contaminated food.
The emergence of new cases has understandably caused concern among the public, as infected individuals may be asymptomatic or experience mild respiratory symptoms. The virus carries a high mortality rate, estimated between 40 percent and 75 percent.
Common signs and symptoms reported by the WHO include fever, headache, muscle pain, vomiting, and sore throat.
