As of May 8, a total of eight Hantavirus cases have been documented, resulting in three deaths, according to a statement from the World Health Organization (WHO). The calculated case fatality ratio stands at 38 per cent. Laboratory confirmations have indicated that six of these cases are linked to the Andes virus (ANDV), prompting concerns about the potential for wider transmission.

The initial cluster of cases was identified aboard a cruise ship, where passengers reported severe respiratory issues. As per the ship operator’s report, the vessel had 147 passengers and crew members aboard, with 34 having disembarked earlier. Following the reporting of these cases, additional confirmations were made beyond those outlined in the last Disease Outbreak News published on May 4.

WHO has communicated with National IHR Focal Points to facilitate international contact tracing in response to the outbreak. While assessing the overall risk to global populations as low, the organisation regards the threat level for the ship’s passengers and crew as moderate, highlighting the need for continuous epidemiological monitoring.

Expert Opinions on Hantavirus Transmission

Professor Neeraj Nischal from the All India Institute of Medical Sciences (AIIMS) stated that the risk of Hantavirus spreading in India remains low, as there have been no reported cases to date. He emphasised that the likelihood of a pandemic situation akin to Covid-19 is minimal, noting that human-to-human transmission of the virus is exceptionally rare.

According to Professor Nischal, the common route of infection arises from contact with the excretion of infected rodents. While no vaccine currently exists for the virus, he remarked that symptomatic treatment remains the primary management approach. Symptoms associated with Hantavirus infections can be similar to other viral illnesses, presenting as fever, body aches, and headaches.

He advised those travelling from affected areas to seek immediate medical assistance if symptomatic, while reinforcing the importance of awareness and sanitation to prevent transmission.

Public Health Preparedness and Recommendations

Healthcare experts have expressed confidence in India’s public health infrastructure, highlighting enhanced preparedness to handle such outbreaks, particularly in the aftermath of the Covid-19 pandemic. Doctor NK Ganguly, Chairperson of the Department of Biotechnology and Research at Sir Gangaram Hospital, mentioned the potential need for masks and Personal Protective Equipment (PPE) in response to the current situation.

Dr Ganguly clarified misconceptions regarding the transmission of Hantavirus, stating that it is not solely spread through person-to-person contact and fomites, but can also be transmitted via aerosols, requiring protective measures such as N-95 masks. He urged the importance of proper equipment to mitigate the risk of spread.

The Union Health Ministry is remaining vigilant by actively coordinating with WHO and other international partners to monitor the situation closely. In response to the reported cases, necessary public health measures are being implemented proactively to safeguard the health and well-being of citizens across India.

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