Understanding Hantavirus: Causes, Symptoms & Prevention Tips
You must have heard about the recent Hantavirus outbreak that sent shockwaves across the globe. While some dismissed it as just another scare and others went as far as calling it Covid 2.0, the reality is far less alarming than the headlines suggest. Hantavirus is a serious infection, but not a new one. It has been around for decades, causing illnesses and fatalities in several parts of America, Europe, and Asia. It was first discovered in South Korea in the late 1970s and has since been reported across multiple continents. The recent outbreak has brought it again into the spotlight, giving rise to a wave of questions, doubts, fears, and a share of misinformation. Therefore, to help you get a clear understanding and ensure you stay aware and protected, here’s everything you need to know about Hantavirus.
What is Hantavirus?
Hantavirus isn’t just a single virus; it is a group or family of viruses that primarily infects rodents like rats and mice. What makes it interesting is that these mammals are mere hosts of the virus. They themselves do not get affected by the virus. They carry it silently and tend to shed it through their saliva, faeces, and urine.
When humans come in contact with these materials, mainly by inhaling tiny dust particles containing the virus, they can contract the infection. This is what makes the hantavirus a tricky affair. It doesn’t require any direct contact with the rodents, nor does it spread from person to person (except one strain of the virus known as the Andes virus); however, simply being in the same space as the infected rodent is enough.
Hantavirus gets its name from a particular river in South Korea called River Hantan, the place where it was first discovered by scientists who were investigating a mysterious fever that had affected soldiers during the Korean War. According to the research, it was found that there are multiple strains of the hantavirus found across the world; each linked to a specific species of rodent. It meant that various rats and mice across the world carried different strains of the virus, making Hantavirus a truly global concern. Two of the most significant strains to date include the Sin Nombre virus, found in North America, and the Andes virus, the strain responsible for the recent outbreak, which is predominantly found in South America.
Causes & Spreading
As mentioned above, the main cause or manner in which hantavirus spreads is from rodent to person. However, understanding the different ways in which it could spread is crucial for preventing the infection. Some of the common ways include the following:
Breathing Contaminated Dust
When rodent droppings or urine dry out, they tend to release tiny airborne particles that carry the virus. This mainly happens when the dried-out material is disturbed, for example, while cleaning a room that had mice in it, sweeping the floor, or moving boxes. When a person inhales the air containing this contaminated dust, it is likely that the virus might enter their lungs easily.
Direct Contact
Another common route through which the virus enters the body is when a person touches rodent faeces, urine, or saliva and then touches their eyes, nose, or mouth. This type of transmission is likely to happen while handling contaminated surfaces or objects like food packaging and nesting materials.
Scratches or Bites from Rodents
This occurrence is highly rare; nevertheless, bites or scratches from an infected rodent can also cause transmission of the virus.
Food Contamination
Consumption of food or water that is contaminated by rodent excretions is also a possible route for virus transmission.
Person-to-Person Contact
Most strains of the hantavirus are referred to as dead-end infections, as these pass from a rodent to a person and do not transfer to other humans. However, the Andes virus strain is an exception to the rule. It spreads from person to person through close, prolonged contact such as between family members or co-workers. Therefore, early identification
and isolation of patients infected with the Andes virus is crucial for transmission prevention.
Symptoms of Hantavirus
Hantavirus normally has an incubation period of one to eight weeks, which means that the symptoms begin to appear after this period. Some of the initial symptoms of hantavirus include:
- Headache
- Fever and chills
- Muscle aches
- Diarrhoea
- Dizziness
- Nausea and vomiting
Over time, patients may develop severe symptoms and health conditions like Hantavirus Pulmonary Syndrome (HPS) or Haemorrhagic Fever with Renal Syndrome (HFRS), depending on the type of hantavirus involved.
How is Hantavirus Treated?
Currently, there is no cure discovered for hantavirus. Common treatment methods include breathing assistance, fluid management, and supportive therapy to help improve outcomes for infected patients.
Hantavirus Prevention Tips
Today, the best tool against Hantavirus is prevention. One of the key tips is to keep rodents like mice and rats away from your home. Keep doors and windows closed at night, seal any holes or cracks in the wall, and ensure all storage or firewood spaces are kept clean to prevent rodents from entering.
Other essential prevention tips include:
- Dispose of garbage regularly.
- Ventilate closed spaces before entering.
- Use mouse traps and deterrents whenever necessary.
- Keep kitchen surfaces clean at all times.
- Do not disturb rodent nesting sites and burrows.
Conclusion
Hantavirus is a real problem that shouldn’t be ignored. Although most of its strains do not spread from person to person, it is important to be careful at all times. It is a virus that has been prevalent for years among mice, and though overwhelming, it is not the start of a second pandemic. Therefore, staying informed and taking the right precautions is all that is needed to stay safe. At Zenzo, we are committed to keeping you and your family informed by providing healthcare guidance, resources, and solutions to protect your health and wellbeing, every step of the way.
FAQ’s
- Is Hantavirus dangerous?
Hantavirus can be dangerous if the symptoms are unrecognized or left untreated. When hantavirus causes severe illnesses like HPS and HFRS, the fatality rates can be alarmingly high. However, with early recognition and intervention, many patients are able to recover fully, highlighting the importance of seeking medical attention as soon as symptoms first appear.
- Is hantavirus contagious from person to person?
No, the vast majority of hantavirus strains are not contagious and do not spread from person to person. However, the Andes virus strain of the hantavirus is an exception to this rule. Unlike other strains, it can spread from person to person through prolonged close contact with an infected individual, such as between family members or caregivers.
- Should I be worried about Hantavirus in India?
While Hantavirus cases in India are rare, the threat cannot be fully ignored. Those living or working in areas with high rodent activity are advised to take basic precautions. Practising good hygiene, controlling rodent infestations, and seeking medical attention if flu-like symptoms develop after potential rodent exposure are simple but effective steps to stay protected.
