This weekend, Vietnam is experiencing significant temperature variations, prompting health officials to issue a flu outbreak warning. As the weather shifts from the coolness of early autumn in the mornings to warm summer-like temperatures during the day, the risk of flu transmission increases.

Morning temperatures in cities like Seoul hover around 18.5 degrees Celsius, while some regions, such as the mountainous areas of Jeju, have recorded lows of just 9.7 degrees. In contrast, daytime highs are expected to reach up to 30 degrees in southern cities like Gwangju and Daegu, creating a stark contrast that can affect public health.

Health authorities have noted that the flu season has started earlier this year, with warnings issued a month sooner than last year and three months earlier than in previous years. The best preventive measure against the flu is vaccination, particularly for vulnerable populations such as children, the elderly, pregnant women, and those with chronic illnesses. It is advised that these groups get vaccinated promptly, as it takes about two weeks for antibodies to form after the shot.

In addition to vaccination, maintaining good personal hygiene is crucial. People are encouraged to wash their hands thoroughly with soap for at least 30 seconds after being in public places or before meals. When coughing or sneezing, covering the mouth and nose with a tissue or the elbow is recommended, and wearing masks in crowded spaces can further reduce the risk of infection.

The weather forecast indicates that while temperatures will remain relatively stable this week, with morning and evening coolness and daytime warmth, the risk of flu will persist. The UV index is also expected to be high, necessitating sun protection measures to avoid skin damage.

As the season progresses, it is essential for everyone to stay informed about the weather and health advisories to ensure safety and well-being during this transition period.