Medical Articles
Influenza in Malaysia
25.10.2026
Do you get a flu shot every year? If you had a flu shot last year, are you still protected? Should you get another shot six months after your last one? And when is influenza most likely to spread in Malaysia? In this article, we’ll answer some common questions about influenza.
Influenza is a respiratory infection caused by influenza viruses. Unlike the common cold, however, it can cause more severe illness and should be taken seriously. In Japan, influenza tends to spread during the winter, so it is often thought of as a “winter illness.” In Malaysia, a tropical and subtropical country, influenza occurs throughout the year and tends to spread more during the rainy season. In Kuala Lumpur, the rainy season generally runs from October to February, so influenza may be more common during roughly the same period as the winter flu season in Japan.
There are also some considerations specific to living in a hot climate. Moving frequently between the intense heat outdoors and strongly air-conditioned indoor environments can make you feel unwell. In addition, spending time in enclosed, air-conditioned spaces with poor ventilation may increase the risk of infection.
To help prevent influenza, get vaccinated, wash your hands and gargle regularly, consider wearing a mask in crowded or poorly ventilated places, maintain a comfortable level of humidity, and eat a well-balanced diet. Flu vaccines generally take about two weeks to provide protection, which then lasts for several months. Because the influenza viruses circulating each year can change, annual vaccination is recommended. Getting vaccinated once a year is generally sufficient; receiving two doses within a short period does not necessarily provide additional benefit.
If you develop symptoms that may be caused by influenza, seek medical attention and consider getting tested. Antiviral medications such as Tamiflu (oseltamivir) may be prescribed when appropriate. These medications work best when started as soon as possible after symptoms begin, ideally within 48 hours.
Symptoms vary from person to person, but influenza often comes on more suddenly and causes more intense symptoms than a typical cold. If you notice something unusual or feel that your symptoms are getting worse, don’t wait—seek medical attention promptly.
Author Bio
Dr. Vivien
Medical Director/Family Medicine Specialist
After completing medical school in Moscow, Dr. Vivien gained clinical experience at a general hospital in Penang, Malaysia. She later served as a full-time physician at Batu Gajah Hospital in Perak and at a clinic in Selangor.
Since 2018, she has been with Hibari Clinic, where she currently serves as Medical Director and is dedicated to providing care for the local community. She has a strong interest in pediatrics and psychosomatic medicine, and values patient-centered care that respects each individual’s needs.