Summer flu: The real causes and effective prevention methods

Colds and flu are typically associated with autumn and winter, with their cold, rainy, and windy weather. However, many are surprised to catch summer flu during the hottest time of the year, raising questions about how viruses thrive in high temperatures. In fact, this summer flu can be more bothersome and disruptive to our daily lives than its winter counterpart, as its symptoms clash with our desire to enjoy summer, vacations, and outdoor activities.

What are the causes of summer flu?

According to medical reports published by the health website Healthline, the primary cause of summer flu is the same as in winter: exposure to viruses (such as enteroviruses and rhinoviruses). These viruses thrive and spread easily when people are in crowded, enclosed spaces, such as summer festivals, busy markets, public transportation, and long flights. In these environments, the distance between individuals is reduced, making it easier for virus-carrying droplets to spread through coughing, sneezing, or even close conversation.

The historical development of understanding seasonal viruses

Historically, for centuries it was believed that colds and flu were a direct result of low temperatures and exposure to cold weather. However, with the advancement of virology and modern medicine in the 20th century, scientists realized that viruses are the true cause, and that cold weather merely contributes to creating conditions conducive to their spread (such as people gathering in poorly ventilated, enclosed spaces). This evolving understanding explains why high summer temperatures do not prevent the spread of viruses; in fact, our summer habits, such as excessive reliance on air conditioning, play a similar role to winter conditions in facilitating infection.

The effect of sudden temperature changes on immunity

When the body temperature rises due to hot weather and sweating, and is then suddenly exposed to cold air currents from air conditioners or windows, a sudden change in body temperature occurs. This temperature contrast leads to severe dryness of the mucous membranes in the nose and throat. These membranes lose their vital function as a protective barrier against viruses, making it easier for viruses to invade and settle in the respiratory system, resulting in the appearance of unpleasant symptoms.

Health and economic impacts of summer flu

The effects of summer influenza beyond individual health, posing an economic and social burden at both the local and international levels. In the business sector, sudden sick leave during holiday seasons leads to decreased productivity and additional pressure on other employees. Regionally and internationally, infection rates increase with the surge in global travel and tourism, as airports and airplanes facilitate the rapid transmission of various viral strains between countries. This necessitates raising public health awareness and implementing personal protective measures while traveling.

Methods of prevention and treatment of summer flu

To overcome this health setback and quickly regain activity, it is recommended to follow the following health guidelines and measures:

• Avoid antibiotics altogether: Since the infection is viral and not bacterial, antibiotics will not help and may even harm your immunity.
• Complete physical rest: giving the body enough time to recover and fight the virus.
• Drink plenty of fluids: to compensate for dehydration and moisturize the mucous membranes.
• Follow a balanced diet: rich in vitamins and minerals to boost the immune system.
• Light exercise: without excessive physical exertion, to maintain active blood circulation.
• Use of chilled compresses: Wrap the legs with chilled cloths in case of high temperature (fever).