H1N1 cases in Delhi : What are the symptoms, prevention tips as cases jump 6-fold from last year

Delhi has recorded a sharp increase in H1N1 influenza cases this season, with infections rising to 1,344 from 229 during the corresponding period last year. The increase of nearly six times has raised concern among doctors, who have cautioned people against dismissing H1N1 as a routine seasonal flu. While most healthy individuals recover, influenza can become serious and potentially life-threatening among people who are more vulnerable to complications.

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Why H1N1 is raising concern

The scale of the increase is significant, with Delhi reporting 1,344 H1N1 cases this season compared with 229 during the same period last year. In otherwise healthy people, influenza commonly causes fever, cough, sore throat, body aches and fatigue, with symptoms generally improving over time.


However, the infection can follow a more serious course in people who are already vulnerable. Older adults, pregnant women, young children, people with diabetes and those with chronic heart or lung diseases face a higher risk of complications. People with weakened immune systems are also particularly susceptible to severe illness.

Antibiotics cannot treat H1N1

H1N1 is caused by a virus, so antibiotics are not effective against the infection. Unnecessary use of antibiotics can also contribute to antimicrobial resistance, which can make bacterial infections more difficult to treat in the future.

Depending on a patient's condition and individual risk factors, doctors may consider antiviral medicines. Such treatment may be particularly considered for people with severe illness or those at a higher risk of complications.

Common symptoms of H1N1

Swine influenza, or H1N1, can cause symptoms similar to those associated with seasonal influenza. The severity can range from mild to severe.

Common symptoms include:

• Fever or chills
• Sweating
• Cough
• Sore throat
• Runny or stuffy nose
• Loss of appetite
• Weight loss
• Body aches or muscle pain
• Headache
• Fatigue or weakness
• Shortness of breath in some cases

Gastrointestinal symptoms, including nausea, vomiting and diarrhoea, are more commonly reported among children.

Vaccination and precautions

Vaccination remains one of the key measures for reducing the risk of severe influenza. Annual flu vaccination may not completely prevent infection, but it can reduce the chances of serious illness, complications and hospitalisation.

Other basic precautions can also help limit transmission. These include washing hands regularly, covering the mouth and nose while coughing or sneezing, avoiding close contact with others when sick and staying home when unwell.

The sharp increase in Delhi's H1N1 cases compared with the same period last year highlights the need for greater caution around influenza. Although most people may recover without major complications, those at higher risk should pay close attention to symptoms and seek timely medical care when required.

Disclaimer: This article is intended for informational purposes only and should not be considered medical advice. Readers are advised to consult a qualified doctor or healthcare professional for medical guidance, diagnosis or treatment. ET.com takes no responsibility for any decisions made based on the information provided in this article.