A hantavirus outbreak aboard the Dutch-flagged cruise ship MV Hondius (May 2026) has reported 7 cases (2 confirmed, 5 suspected) and 3 deaths, prompting WHO-led global response; risk remains low but disease has high fatality. Best Book for Current Affairs & General Knowledge Preparation
Hantavirus is a zoonotic RNA virus of the family Hantaviridae, primarily transmitted through inhalation of aerosols from rodent urine, droppings or saliva, especially in enclosed or poorly ventilated environments.
WHO confirms illness onset ranged between 6–28 April 2026, with symptoms progressing from fever and gastrointestinal distress to pneumonia, acute respiratory distress syndrome and shock, indicating rapid clinical deterioration.
Globally, hantavirus infections are rare but severe; case fatality varies from <1–15% in Europe/Asia to 20–50% in the Americas, where Hantavirus Cardiopulmonary Syndrome (HCPS) predominates.
The Andes virus strain, prevalent in South America, is significant as it allows limited human-to-human transmission, unlike most hantaviruses which require rodent exposure for infection.
The current outbreak likely originated from exposure in South America before boarding, with WHO investigating possible onboard transmission due to absence of rodent evidence on the vessel.
Incubation ranges from 1–8 weeks, complicating detection; early symptoms resemble influenza, making diagnosis difficult without exposure history and laboratory confirmation via RT-PCR or serology.
There is no specific antiviral cure; management relies on early supportive care, particularly oxygen therapy and intensive monitoring, which significantly improves survival outcomes in severe respiratory cases.
Prevention remains centered on minimizing human-rodent contact, improving sanitation, and ensuring ventilation in high-risk settings like ships, farms and enclosed dwellings.
WHO has assessed the current outbreak as a “serious but contained event,” with no recommendation for travel restrictions, emphasizing coordinated surveillance, isolation and international response mechanisms under IHR (2005).
Expected Current Affairs Questions for UPSC CDS NDA and AFCAT Written Exam
Q1. Which hantavirus strain is known for limited human-to-human transmission?
(a) Puumala virus
(b) Andes virus
(c) Sin Nombre virus
(d) Seoul virus
Answer: (b) Andes virus
Explanation: Andes virus, found in South America, is the only hantavirus with documented limited human-to-human transmission.
Q2. Hantavirus Cardiopulmonary Syndrome (HCPS) primarily affects which organ system?
(a) Nervous system
(b) Digestive system
(c) Respiratory system
(d) Endocrine system
Answer: (c) Respiratory system
Explanation: HCPS causes severe lung involvement, leading to respiratory failure and shock.
Q3. Primary mode of hantavirus transmission to humans is:
(a) Mosquito bite
(b) Contaminated water
(c) Rodent excreta aerosols
(d) Direct skin contact
Answer: (c) Rodent excreta aerosols
Explanation: Infection occurs mainly through inhalation of airborne particles from rodent urine, droppings or saliva.
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