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Nipah virus infection: what clinicians need to know
Nitin Gupta1, Shreya Das Adhikari2, Mukund Gupta3
1Department of Infectious Disease, Kasturba Medical College, Manipal Academy of Higher Education, Manipal, India.
Abstract:
Nipah virus infection is an uncommon but highly lethal zoonotic illness that primarily presents with acute encephalitis and respiratory disease in humans. After its initial identification during the Malaysia-Singapore outbreak of 1998-1999, human outbreaks have since been reported in Bangladesh and India. Despite the relatively small number of reported cases, the Nipah virus remains a major clinical and public health concern because of its high mortality, capacity for person-to-person transmission, lack of approved antiviral treatment, and potential for amplification within healthcare settings. For clinicians, the major challenge lies in early recognition of a disease that initially presents with nonspecific febrile symptoms but may rapidly progress to severe encephalitis, acute respiratory distress syndrome, or both. Human-to-human transmission has been well documented in South Asian outbreaks, particularly in household and healthcare settings, underscoring the importance of prompt isolation and infection prevention measures. Laboratory confirmation relies primarily on reverse transcription polymerase chain reaction, with serology providing supportive evidence later in the course of illness. Management remains largely supportive, with intensive care often required in severe cases. This review provides a practical clinician-oriented overview of Nipah virus infection, focusing on epidemiology relevant to frontline practice, clinical presentation, transmission, diagnostic approach, infection control, treatment, prognosis, and outbreak response.
Insights
Nipah virus infection is a lethal zoonotic disease causing encephalitis and respiratory illness. Early recognition and infection control are crucial due to its high mortality and human-to-human transmission potential.
Area of Science:
- Infectious Diseases
- Public Health
- Virology
Background:
- Nipah virus (NiV) is a zoonotic pathogen causing severe human illness, primarily encephalitis and respiratory disease.
- Outbreaks have occurred in Malaysia, Singapore, Bangladesh, and India, highlighting its public health significance.
- High mortality, human-to-human transmission, and lack of specific treatments make NiV a major concern.
Purpose of the Study:
- To provide a clinician-oriented overview of Nipah virus infection.
- To focus on epidemiology, clinical presentation, transmission, diagnostics, and outbreak response.
- To guide frontline practitioners in managing NiV cases.
Main Methods:
- Review of epidemiological data from Nipah virus outbreaks.
- Analysis of clinical presentations, including encephalitis and respiratory distress.
- Summary of diagnostic approaches (RT-PCR, serology) and infection control measures.
Main Results:
- Nipah virus infection presents with nonspecific febrile symptoms that can rapidly progress to severe encephalitis or acute respiratory distress syndrome.
- Human-to-human transmission is documented, especially in healthcare and household settings, necessitating prompt isolation.
- Laboratory confirmation involves RT-PCR and supportive serology; management is primarily supportive with intensive care.
Conclusions:
- Early recognition of Nipah virus infection is critical for effective clinical management and preventing spread.
- Stringent infection prevention and control measures are essential in healthcare settings to mitigate transmission.
- A coordinated outbreak response is vital due to the virus's high lethality and transmission potential.
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