While fevers are often overlooked and brushed aside or even managed with antibiotics — a dangerous trend — an alarmingly nationwide study linked it to infectious diseases with far-reaching consequences. The report, based on data of over one lakh individuals in India with fever, between 2023 and 2025, showed that these were not vague or self-limiting, but in more than 30 percent or one-third cases had clear links to serious infections, such as dengue, and typhoid. According to the report by healthcare diagnostics company Thyrocare, the fevers were mostly linked with typhoid – in over 18 percent cases dengue -- over 14 percent cases. Other diseases include malaria, chikungunya, and leptospirosis.Presence Of Multiple Infections Importantly, the findings highlighted the presence of co-infections in 10 per cent cases. The most common was a combination of dengue and typhoid. Dr Preet Kaur, Chief Scientific Officer, Thyrocare, said that a significant number of patients carry serious infections, sometimes more than one at a time, revealing patterns that simple assumptions cannot capture. "Beyond the visible rise in temperature, laboratory markers highlight hidden stress on organs, from drops in platelet counts to elevated liver enzymes, underscoring that fever is a systemic signal, not an isolated event," she added. Also read: ‘Breakbone Fever’: US CDC Warns Of Dengue Surge Across 17 Countries Further, the report noted that dengue positivity declined significantly over the three-year report period, malaria increased despite its lower overall base. Typhoid and chikungunya rose in 2024 before easing in 2025 but remained present across the testing population. Also read: Drug Resistance Driving Severe Typhoid Disease, Death Among Children Under-5s in India: Lancet StudyFever: Men Vs Women The report noted that more women were affected with typhoid than men. On the contrary, men reported more malaria cases. More than 32 percent of females had fevers compared to 29 percent of men. Fevers in women was largely driven by higher typhoid detection (21 percent vs 15 percent). Malaria affected men more than twice as often as women (1.1 percent vs 0.5 percent). The lab reports also revealed key physiological markers such as platelet counts and liver function among people with fever, dengue, and malaria. Low platelet levels were seen in 27 percent of patients with fever 80 percent malaria positive patients 37 percent dengue-positive patients Liver abnormalities All fever patients (56 percent) showed elevated SGOT levels and 37 percent SGPT Liver stress was seen across patients with dengue, malaria and leptospirosis. Fever: Seasonal Spikes Dengue cases rose throughout the year and typically peaked around October. Typhoid positivity steadily fell from 2023 to its lowest in 2025. Despite a mild monsoon spike each year, 2025 remained consistently lower overall. Chikungunya cases rose gradually from lower, volatile levels in 2023, peaked sharply in 2024, and moderated to a softer trend in 2025. Malaria positivity remained relatively low overall but increased during the monsoon months, with transmission peaking between May and September. Over the three-year period, malaria positivity rose from 0.5 percent to 1.1 percent, indicating a gradual increase despite its lower overall base.