Hantavirus Infection:
What You Need to Know
A plain-language guide for Pakistani patients — written by the team at Australian Polyclinic, Lahore
You may have recently heard the word “Hantavirus” in the news. Perhaps a neighbour mentioned it, or you saw it trending online. While it may sound alarming, understanding what this disease actually is — and what it is not — will help you protect yourself and your family. This article explains everything in simple terms, with particular attention to what it means for people living in Pakistan.
What is Hantavirus?
Hantavirus is a family of viruses carried primarily by rodents — most commonly rats and mice. Infected rodents shed the virus in their urine, droppings, and saliva. When humans come into contact with these materials — by breathing in contaminated dust, touching infected surfaces, or being bitten — they can become infected.
There are two main forms of illness hantavirus can cause in humans:
- Hantavirus Pulmonary Syndrome (HPS) — mainly seen in North and South America. Affects the lungs and can be very serious. This is the type involved in the current 2026 outbreak.
- Haemorrhagic Fever with Renal Syndrome (HFRS) — more common in Europe and Asia, including China and Korea. Affects the kidneys and blood vessels.
The good news is that hantavirus does not spread easily between people — it is not like COVID-19 or influenza. In most cases, it requires direct contact with infected rodents or their droppings.
What is Happening Right Now — May 2026?
On 2 May 2026, the World Health Organization (WHO) was notified of a cluster of hantavirus cases linked to a cruise ship called the MV Hondius, a Dutch-flagged vessel that had visited remote areas including Antarctica and several Atlantic islands. The virus involved is the Andes virus (ANDV) — a strain found in South America that, unlike most hantaviruses, can occasionally spread from person to person through very close contact.
- 11 cases confirmed or suspected among cruise ship passengers
- 3 deaths reported
- Passengers from 23 countries were on board
- WHO has assessed the global public risk as LOW
- There is no licensed specific antiviral treatment — supportive ICU care is key
This outbreak is being closely monitored by health authorities worldwide. However, because it is linked to a very specific remote environment and the Andes virus strain that is not present in Pakistan, the direct risk to Pakistanis from this particular outbreak is very low.
What Does This Mean for Pakistan?
A Local Concern Gaining Attention
While the current outbreak is far from Pakistan, hantavirus is not entirely a foreign threat. Pakistan — like many developing countries — has conditions that can support rodent populations, particularly in urban areas with sanitation challenges.
The Peshawar High Court recently heard a public interest petition highlighting serious rat infestations in Peshawar city. Petitioners described rat bites on children, poor garbage disposal, open drains, and broken sewerage as major public health concerns. The court has directed the KP government to submit a detailed report by June 2026.
Health experts and veterinary officers in KP have emphasised that public awareness about rodent-borne diseases — including hantavirus — is urgently needed in Pakistan right now.
Pakistan has historically had rodent-related disease burdens. Lahore, Karachi, Peshawar, and other dense urban centres are not immune to the conditions that can put people at risk. This is not a reason for panic — but it is a reason to be careful and well-informed.
Symptoms — What to Watch For
Hantavirus infection typically develops in two stages. The early symptoms look like many other illnesses, which is why it is important to think about whether you have had any contact with rodents or their droppings if you develop these symptoms.
- High fever
- Severe headache
- Muscle aches (especially thighs, hips, back)
- Chills
- Nausea and vomiting
- Stomach pain or diarrhoea
- General weakness and fatigue
- Shortness of breath (worsening rapidly)
- Cough with fluid in lungs
- Feeling of tightness in chest
- Drop in blood pressure
- Low urine output (if kidneys affected)
- Bleeding or bruising
If you develop flu-like symptoms AND you have recently been near rodents, rodent droppings, or a contaminated area — do not wait. Seek medical attention immediately. Hantavirus can worsen very rapidly. Early supportive care in a hospital setting significantly improves survival.
How Does it Spread?
Understanding how hantavirus actually spreads helps remove unnecessary fear and focus attention on real risks.
- Inhaling infected dust — the most common route. Sweeping or disturbing rodent droppings, nests, or urine can release virus particles into the air.
- Direct contact — touching rodent droppings, urine, or nesting materials and then touching your mouth, nose, or eyes.
- Rodent bites — less common but possible.
- Person-to-person — only documented with the Andes virus strain (South America). Most other hantaviruses do not spread this way.
- Coughing or sneezing in public (unlike flu or COVID-19)
- Food or water (unless directly contaminated by rodents)
- Touching another infected person’s skin
- Mosquitoes or other insects
How to Protect Yourself and Your Family
Prevention is straightforward and largely comes down to avoiding contact with rodents and keeping your home environment clean. Here are practical steps for Pakistani households:
Block gaps and holes in walls, doors, and around pipes. Rats can enter through surprisingly small openings.
Use sealed bins. Do not leave food waste uncovered. Dispose of rubbish regularly — especially in kitchens.
Never dry sweep or vacuum rodent droppings — this throws virus particles into the air. Wet the area with disinfectant first, then clean with gloves and a mask.
If handling anything potentially contaminated by rodents — old storage rooms, grain sacks, garages — always wear gloves and ideally a mask.
Before entering a long-closed room, store room, or area that may have had rodents — open windows and let it air out for 30 minutes first.
Keep grain, flour, and other food stores in sealed containers. Do not leave food out overnight — this attracts rodents.
After handling any materials that may have been near rodents, wash hands thoroughly with soap and water.
Use traps or call a pest control service if you notice signs of rodents. Report severe rat infestations in public areas to local municipal authorities.
Diagnosis and Treatment
There is currently no specific licensed antiviral drug for hantavirus infection, and there is no vaccine available. This makes early recognition and hospital care critically important.
Diagnosis requires blood tests that detect antibodies or viral genetic material. If hantavirus is suspected, patients need to be admitted to a hospital — ideally with intensive care facilities — where supportive treatment can be provided. This includes oxygen therapy, management of fluid balance, and in severe cases, mechanical ventilation.
- Oxygen support and, if needed, mechanical ventilation for lung failure
- Careful fluid management to support blood pressure
- Monitoring kidney function closely
- Treating any secondary infections
- Close observation in an ICU setting
The message is clear: early presentation to hospital saves lives. Do not wait if you have symptoms and a history of rodent exposure. The earlier treatment begins, the better the outcome.
When Should You See a Doctor?
- Had recent contact with rodents, their droppings, or contaminated areas AND are now unwell with fever
- Difficulty breathing or shortness of breath that is getting worse
- A rat bite or scratch that you are concerned about
- Fever, severe headache, and muscle pain without an obvious cause
At Australian Polyclinic, our specialist physicians are experienced in evaluating respiratory illness, infectious disease symptoms, and unusual presentations. If you are worried, do not hesitate — call us or book an appointment and we will assess you properly.
Concerned About Your Symptoms?
Our specialist team at Australian Polyclinic, DHA Phase 5, Lahore is here to help. Whether you have respiratory symptoms, have had rodent exposure, or simply want a professional assessment — we are available Monday to Saturday, 1:00 PM – 9:00 PM.