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Expat Exchange - Dengue Virus in India
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Dengue Virus in India

By Betsy Burlingame

SJB Global
SJB Global

Summary: The presence of the Aedes mosquito in India brings with it the risk of the dengue virus. It's vital to recognize dengue symptoms and engage in preventative practices to lessen the likelihood of mosquito bites in the region.

Diseases in India - Dengue Virus in India

Dengue virus, a mosquito-borne disease, poses a significant public health challenge in India, with its tropical climate providing an ideal breeding ground for the Aedes aegypti mosquito, the primary vector of the virus. Characterized by high fever, severe headache, and joint pain, dengue affects millions annually, with varying degrees of severity. Understanding the nature of the disease, its prevalence, and prevention strategies is crucial for both residents and expatriates living in India. This article delves into the critical aspects of dengue virus in India, offering insights into its symptoms, the regions most affected, and the measures one can take to prevent infection.

What is Dengue Disease?

Dengue disease is an illness caused by the dengue virus, which is transmitted to humans through the bite of an infected Aedes mosquito. Symptoms typically begin three to fourteen days after infection and may include a high fever, severe headache, pain behind the eyes, joint and muscle pain, fatigue, nausea, vomiting, skin rash, and mild bleeding (such as nose or gum bleed, or easy bruising). The duration of the illness usually lasts for about 2-7 days. While most people recover after a week, dengue can occasionally develop into severe dengue, also known as dengue hemorrhagic fever, which can be life-threatening. Long-lasting effects are rare but may include fatigue and depression that can persist for weeks or even months after the acute phase of the illness has resolved.

Where is Dengue Most Prevalent in India?

Dengue is most prevalent in urban and semi-urban areas across India, with the highest number of cases typically reported from states such as Kerala, Tamil Nadu, Karnataka, Maharashtra, and Delhi. The disease has a seasonal pattern, with the majority of cases occurring during and after the monsoon season, from July to November, when the conditions are most favorable for mosquito breeding. However, due to the vast geographic and climatic diversity of India, dengue can occur year-round in some regions.

How do Expats in India Prevent Mosquito Bites?

Expatriates living in India can take several precautions to prevent mosquito bites and reduce the risk of contracting dengue virus. These include using mosquito repellent containing DEET, picaridin, or oil of lemon eucalyptus on exposed skin and clothing. Wearing long-sleeved shirts and long pants, especially during the day when the Aedes mosquitoes are most active, is also advisable. Installing window and door screens, using mosquito nets while sleeping, and eliminating standing water where mosquitoes can breed are effective strategies. Additionally, expats should be aware of dengue outbreaks in their area and take extra precautions during these times.

What if I Get Dengue Virus in India?

If you suspect you have contracted the dengue virus in India, it is essential to seek medical attention promptly. There is no specific treatment for dengue; medical care is primarily supportive, focusing on relieving symptoms and maintaining proper body fluid balance. Over-the-counter pain relievers can help with fever and pain, but aspirin and nonsteroidal anti-inflammatory drugs (NSAIDs) should be avoided as they can increase the risk of bleeding. Hospitalization may be necessary for severe cases. Rest, hydration, and close monitoring for complications are crucial during recovery.

Is Dengue Virus Contagious?

Dengue virus is not contagious and cannot spread directly from person to person. The only way the virus can be transmitted is through the bite of an infected Aedes mosquito. When a mosquito bites a person infected with dengue virus, the mosquito can become a carrier of the virus and can then transmit it to other humans through bites. This means that while dengue is not contagious in the traditional sense, outbreaks can occur when conditions allow for a high population of carrier mosquitoes.

Is Dengue Virus More Dangerous for Children, Elderly, or Immune-Compromised?

Dengue virus can be more dangerous for certain groups, such as children, the elderly, or those with compromised immune systems. Children, in particular, are at a higher risk of developing severe dengue, which can lead to serious complications and even death. The elderly may also have a higher risk of severe disease due to the potential presence of other underlying health conditions. Individuals with weakened immune systems, including those with HIV/AIDS or those taking immunosuppressive drugs, may have a more prolonged or severe course of the disease. It is crucial for these vulnerable populations to take extra precautions to avoid mosquito bites and to seek medical care early if they develop symptoms of dengue.

In conclusion, dengue virus remains a significant health concern in India, with its impact felt across various states and populations. Awareness of the symptoms, understanding the regions most at risk, and implementing effective prevention strategies are key to combating this disease. Expatriates and travelers to India should be particularly vigilant and take proactive measures to protect themselves. While dengue is not contagious from person to person, the role of the Aedes mosquito in its transmission underscores the importance of community-wide efforts to control mosquito populations and prevent outbreaks. With ongoing research and public health initiatives, the fight against dengue in India continues, aiming to reduce the burden of this debilitating disease.

About the Author

Betsy Burlingame Betsy Burlingame is the Founder and President of Expat Exchange and is one of the Founders of Digital Nomad Exchange. She launched Expat Exchange in 1997 as her Master's thesis project at NYU. Prior to Expat Exchange, Betsy worked at AT&T in International and Mass Market Marketing. She graduated from Ohio Wesleyan University with a BA in International Business and German.

Some of Betsy's articles include 12 Best Places to Live in Portugal, 7 Best Places to Live in Panama and 12 Things to Know Before Moving to the Dominican Republic. Betsy loves to travel and spend time with her family. Connect with Betsy on LinkedIn.


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SJB Global is a top-rated financial advisory firm specializing in expat financial advice worldwide, offering retirement planning & tax-efficient solutions with a regressive fee model.
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