Nipah virus: Symptoms, transmission methods, and severity in Saudi Arabia

The name “Nipah Virus” has once again become a headline in global health news, raising concerns due to its high mortality rates. In this context, leading infectious disease and public health experts offered important reassurances about the nature of the virus, confirming to Al-Youm newspaper that the Kingdom of Saudi Arabia’s health preparedness and epidemiological surveillance systems are a strong barrier against its potential spread, despite its classification globally as a high-risk virus.

What is the Nipah virus? And what are its historical roots?

Nipah virus is a zoonotic virus, meaning it can be transmitted from animals to humans. Its history dates back to 1998, when it was first identified during a large outbreak among pig farmers in Malaysia and Singapore, infecting nearly 300 people and causing over 100 deaths. Since then, no new outbreaks have been recorded in those areas, but the virus has subsequently appeared sporadically in Bangladesh and India.

Infectious disease consultant Dr. Alian Al-Alian explained that the virus is mainly transmitted through the fluids of infected animals or food contaminated with them, noting that diagnosis is done through advanced techniques such as (PCR) testing and antibody tests, however, there is still no globally approved vaccine or specific treatment available to combat it.

Transmission routes and clinical symptoms

There are various modes of transmission. Dr. Ali Al-Shehri, a consultant in infectious diseases, confirmed that the fruit bat is considered the natural and primary host of the virus. Human infection occurs either through contact with bats, surfaces contaminated with their droppings, or by consuming fruit contaminated with bat saliva.

For her part, infectious disease consultant Dr. Hawraa Al-Bayat elaborated on the symptoms, explaining that the incubation period usually ranges from 4 to 14 days, and can rarely extend to 45 days. The symptoms begin as follows:

• Fever, severe headache, and muscle pain.
• Sore throat and vomiting.
• The condition progressed to dizziness and altered consciousness.
• Serious neurological complications include acute encephalitis.
• Respiratory problems may progress to atypical pneumonia.

Risk and mortality rates

Nipah is classified as a high-risk virus not because of its rapid spread, but because of its high lethality. Emergency medicine consultant Dr. Basim Al-Bahrani indicated that the mortality rate can range from 40% to 75%, depending on healthcare capacity and the extent of the outbreak. He added that advanced cases can fall into a coma within 24 to 48 hours, making early suspicion and rapid intervention crucial for saving lives.

The Kingdom is safe: high level of preparedness and strict measures

Despite global concerns, experts affirmed that the Kingdom is safe thanks to God and the precautionary measures implemented. Dr. Nabila Al Abdullah, Professor of Public Health and Epidemiology, explained that the risk of the virus spreading to the Kingdom is low, but health authorities maintain maximum readiness, especially during peak seasons such as Umrah and Ramadan.

The Kingdom's strategy includes:

• Activating strict health screening protocols at border crossings.
• High clinical readiness in hospitals to deal with any suspected cases.
• Implementing strict infection control procedures within healthcare facilities.
• Advanced epidemiological surveillance systems for immediate reporting and isolation.

The experts concluded by emphasizing that community awareness, avoiding travel to infected areas, and adhering to the Ministry of Health's instructions represent the first line of defense against this disease and other epidemics.