Country profile
Hantavirus in Costa Rica
No active risk signals detected for Costa Rica in the current 30-day window.
Hantavirus signals for Costa Rica are aggregated from WHO Disease Outbreak News, ProMED-mail, PAHO bulletins, and global news (GDELT & Google News). The risk index combines news mention density, verified outbreak reports, source authority, and recency.
Recent news from Costa Rica
No recent country-tagged news. See the global feed for context.
FAQ
Hantavirus in Costa Rica: questions answered
Is hantavirus present in Costa Rica?
Yes — Costa Rica is a known reporting region for hantavirus. The principal strain associated with human cases is Choclo virus, primarily carried by Costa Rican pygmy rice rat. Local transmission produces hantavirus pulmonary syndrome (HPS). Costa Rica currently shows a low Hantavirus Tracker risk index, meaning no notable signals have been detected from monitored sources in the recent window.
What is the current hantavirus risk in Costa Rica?
No active risk signals are being detected for Costa Rica in the current window. This means the Hantavirus Tracker has not seen meaningful news, outbreak reports, or surveillance updates for the country in the last 30 days.
How does hantavirus spread in Costa Rica?
Most human infections in Costa Rica occur when people inhale aerosolized particles from rodent urine, droppings, or saliva, typically while cleaning enclosed spaces such as cabins, sheds, barns, or rural homes that have had rodent activity. Less commonly, infection follows a rodent bite or eating food contaminated by rodents. Person-to-person spread is generally not documented for hantaviruses globally, with the notable exception of Andes virus in southern South America, which has produced confirmed person-to-person clusters in Argentina and Chile.
What are the symptoms of hantavirus and when should someone in Costa Rica seek care?
Early symptoms appear roughly one to eight weeks after exposure and include fever, severe muscle aches (especially in the thighs, hips, lower back), headache, nausea, vomiting, and abdominal pain. After several days, patients with HPS develop coughing and rapidly worsening shortness of breath as fluid fills the lungs — this phase can be fatal within hours without intensive care. Anyone with flu-like symptoms and recent rodent exposure (within the last six weeks) should contact a healthcare provider immediately and explicitly mention the rodent contact history.
How is hantavirus prevented in Costa Rica?
Prevention focuses on reducing contact with rodents and their droppings: seal openings ¼ inch and larger in homes and outbuildings, store food in rodent-proof containers, remove brush and woodpiles near dwellings, and clean rodent-contaminated areas safely. Never sweep or vacuum dry droppings — that aerosolizes the virus. Instead, ventilate the space, wear gloves and an N95 respirator, spray surfaces with a 1:10 bleach-water solution, let it soak five minutes, then wipe with paper towels and double-bag the waste. People working in rural agriculture, hantavirus-endemic forests, or cleaning long-unused cabins in Costa Rica are at the highest occupational risk.
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Prevention
- Seal openings ¼ inch and larger in homes and outbuildings.
- Trap rodents and remove sources of food and shelter.
- When cleaning rodent-contaminated areas, wet down with a 1:10 bleach-water solution before wiping; never sweep or vacuum dry droppings.
- Wear gloves and an N95 respirator when cleaning enclosed rodent-affected spaces.
See the full prevention guide →
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Reference
Read more: What is hantavirus · Symptoms · Transmission · Historical outbreaks