Flu, H1N1 rampant in Kerala; 4,405 cases of influenza were reported

Influenza or cases of influenza, specifically influenza A (H1N1), have been rampant across the state this season and have also claimed many lives, prompting health officials to reiterate warnings about maintaining respiratory hygiene, including masking and protecting vulnerable groups from infection.

The state has reported 4,405 flu cases and 49 deaths so far, and the trend could see the number of cases surpass last year’s. Four flu deaths were reported from Thiruvananthapuram on Tuesday, three of which were H1N1 and all were in the age group of 55-85 years.

Surveillance of all influenza illnesses and severe acute respiratory infections has been strengthened in all districts and treatment protocol and guidelines have been reviewed.

Stay at home

The Department of Health advised people not to ignore a cold and to stay at home with plenty of fluids and supportive care. Oseltamivir is an effective antiviral against H1N1 and those considered to be at high risk should seek medical advice and start treatment immediately.

Elderly people with comorbidities such as diabetes, hypertension, asthma, cardiovascular and kidney problems, people with immune-compromising conditions such as cancer, pregnant women and young children are considered high-risk or vulnerable groups.

They need to watch out for colds and respiratory infections, and if there are no signs of abatement, they should seek professional help.

Influenza is a serious illness for older adults, with increased severity of infection and higher risk of hospitalization and death. In older adults, the disease may be exacerbated by many factors, including existing comorbidities, impaired lung function, and dysregulated immune responses that occur even with healthy aging.

Fewer clinical signs

Doctors have reported that older individuals often experience fewer clinical signs and symptoms of a classic flu infection while suffering more severe complications from the disease.

Even if death is avoided, older adults are at increased risk of secondary complications, such as bacterial pneumonia, which can lead to serious illness.

In general, an annual flu shot is the best way to prevent the flu, but protection can vary greatly from person to person. People in the high-risk group may be advised to get a preventive vaccination, but the flu shot should not give them a false sense of security. Because flu vaccines do not protect against infection and illness caused by other viruses that can also cause serious flu-like illnesses.

Published – 16 Jul 2026 20:37 IST