Question 1

What is hantavirus?

Accepted Answer

A family of viruses carried mainly by rodents. In humans it causes HPS in the Americas or HFRS in Europe and Asia.

Question 2

Is hantavirus new?

Accepted Answer

No. It has been recognized since the 1950s. The 1993 Four Corners outbreak brought HPS to global attention; Andes virus was identified in 1995.

Question 3

How common is hantavirus?

Accepted Answer

Tens of thousands of HFRS cases occur worldwide each year, mostly in Asia. HPS is rarer, with roughly 800 confirmed U.S. cases since 1993.

Question 4

Where is hantavirus found?

Accepted Answer

On every inhabited continent. Sin Nombre in the Americas, Andes in southern South America, Puumala in northern Europe, Hantaan in East Asia.

Question 5

Who discovered hantavirus?

Accepted Answer

Dr. Ho-Wang Lee isolated the prototype Hantaan virus in 1976. Sin Nombre virus was identified in 1993.

Question 6

How do you get hantavirus?

Accepted Answer

Most people are infected by breathing airborne particles from rodent urine, droppings, or saliva.

Question 7

Can it spread person to person?

Accepted Answer

Only the Andes strain has documented person-to-person spread, usually among close household or healthcare contacts.

Question 8

Can you get it from food or water?

Accepted Answer

Foodborne infection is rare but possible. It is not known to spread through public water supplies.

Question 9

Can pets give me hantavirus?

Accepted Answer

No. Dogs and cats are not natural reservoirs, but they can bring infected rodents into the home.

Question 10

Is hantavirus airborne between people?

Accepted Answer

Not for typical strains. Aerosols from disturbed rodent waste are infectious; person-to-person airborne spread is only documented for Andes virus.

Question 11

Do mosquitoes spread hantavirus?

Accepted Answer

No. No insect vector is known to spread hantavirus.

Question 12

What are early symptoms?

Accepted Answer

Fever, severe muscle aches, headache, fatigue, dizziness, nausea, vomiting, abdominal pain, typically 1 to 8 weeks after exposure.

Question 13

What are late or severe symptoms?

Accepted Answer

HPS: cough, shortness of breath, pulmonary edema progressing to respiratory failure. HFRS: low back pain, low blood pressure, kidney injury, bleeding signs.

Question 14

When should I go to the ER?

Accepted Answer

Immediately if you have shortness of breath, chest pain, confusion, or fainting after a flu-like illness, especially with possible rodent exposure.

Question 15

Are there long-term effects?

Accepted Answer

Survivors may have reduced exercise tolerance and lung function for months. Most recover fully within a year.

Question 16

Can hantavirus be asymptomatic?

Accepted Answer

True asymptomatic infection appears uncommon, but mild and unrecognized cases likely occur.

Question 17

How do I prevent hantavirus at home?

Accepted Answer

Seal openings, store food in sealed containers, set traps, keep yards trimmed, and clean rodent waste safely with disinfectant and PPE.

Question 18

What mask should I wear when cleaning?

Accepted Answer

An N95 or better respirator. Cloth and surgical masks do not provide adequate protection.

Question 19

Is bleach effective?

Accepted Answer

Yes. A 1 to 10 bleach-water solution inactivates hantavirus on surfaces.

Question 20

Should I sweep or vacuum droppings?

Accepted Answer

No. Sweeping aerosolizes virus particles. Wet down with disinfectant first, then wipe up with paper towels.

Question 21

Is there a vaccine?

Accepted Answer

Vaccines for Hantaan and Seoul exist in South Korea and China. No vaccine is approved in the U.S. or Europe for Andes or Sin Nombre.

Question 22

How is hantavirus diagnosed?

Accepted Answer

Blood tests detecting IgM/IgG antibodies, RT-PCR for viral RNA, plus clinical findings and exposure history.

Question 23

Is there a cure?

Accepted Answer

No specific antiviral is approved. Care is supportive: oxygen, fluids, ICU monitoring, and sometimes ECMO for severe HPS.

Question 24

What is the survival rate?

Accepted Answer

HPS mortality is roughly 35-40%. HFRS mortality ranges from under 1% to 15% depending on strain.

Question 25

Can hantavirus come back?

Accepted Answer

Reinfection with the same strain is rare; immunity after recovery appears long-lasting.

Question 26

Is it safe to travel to South America right now?

Accepted Answer

Most destinations remain safe with normal precautions. Avoid sleeping in cabins or shelters with rodent activity, and check current PAHO and your home-country travel advisories before booking.

Question 27

Are cruise ships at risk?

Accepted Answer

Expedition vessels operating in Andes-endemic regions (Patagonia, southern Chile and Argentina) carry elevated risk because of close shared spaces and remote shore stops. Standard ocean cruises elsewhere are not considered higher risk.

Question 28

Is there airport screening for hantavirus?

Accepted Answer

No routine airport screening exists. Hantavirus has a long 1 to 8 week incubation period, so border screening is ineffective. Authorities rely on contact tracing.

Question 29

Does travel insurance cover hantavirus?

Accepted Answer

Most comprehensive policies cover hospitalization and medical evacuation for infectious illness, including hantavirus. Confirm coverage before travel and keep documentation of any official advisories.

Question 30

Are there quarantine rules for travelers?

Accepted Answer

Quarantine is not routinely required for asymptomatic travelers. If you were on a vessel or in a setting linked to a confirmed Andes virus outbreak, follow direct guidance from your local health authority, which may include monitoring and isolation if symptoms develop.

Hantavirus FAQ

General

Transmission

Symptoms

Prevention

Diagnosis & Treatment

Travel