Hyderabad: Cases of “summer flu” have risen sharply with temperatures, leaving hospitals and clinics with fever, cough and fatigue. Doctors say the combination of heat, dehydration and temperature fluctuations in indoor temperatures that are cool indoors and warm outdoors makes people vulnerable to viral infections, leading to seasonal spikes in flu-like diseases.
Unlike winter flu, which is usually caused by viruses, summer flu is triggered by a mixture of heat stress and viral infections that multiply in hot and humid conditions.
“We see a significant increase in patients with viral fever, sore throat, headaches and body pain. Many people also experience digestive problems common in summer infections, such as nausea and diarrhea,” said Dr. Arvind Reddy, a general doctor. He explained that sudden exposure to air conditioners in the sun weakens the immune system and makes the virus more susceptible to attack.
Doctors also attribute the surge in cases to dehydration and poor fluid intake, which can weaken the body’s natural defense. Many people, especially children and the elderly, do not drink enough water, resulting in electrolyte imbalance and higher risk of infection.
“In the summer, people tend to sweat and lose the essential fluids and salt. If they don’t keep hydrated, the body’s ability to fight infections will be reduced, making them more susceptible to viral diseases,” said Dr. Swapna Rao, an internal medicine expert. Increasing consumption of street food and contaminated water can also lead to gastrointestinal infections during this season, she added, sometimes accompanied by flu symptoms.
Treatment of summer flu mainly involves controlling symptoms and allowing the body to recover naturally. Doctors recommend large amounts of liquid, rest and light nutritious meals to boost immunity. Dr. Reddy said steam inhalation and salt water fragments can relieve throat irritation. If symptoms persist, he advises patients to seek medical care.
Preventing summer flu requires simple precautions such as keeping moisture, avoiding sudden temperature transfers, maintaining good hygiene and eating fresh home-cooked meals. Dr. Rao also recommends breathable cotton clothing and use natural cooling methods instead of excessive air conditioning to avoid temperature differences.
