Only 17 per cent of Covid-19 patients observed in the All India Institute of Medical Sciences (AIIMS) Trauma Centre in Delhi and Haryana's Jhajjar had fever as a symptom. A study published in ICMR's Indian Journal of Medical Research states that the presence of fever was observed far less than other reports across the globe. The study was carried out on 144 hospitalised patients from March 23 to April 15 and found that 44% of the patients were asymptomatic at the time of admission. 'Overemphasis on fever as a predominant symptom may lead to several cases being missed as these asymptomatic patients are potential transmitters of infection in the community,' the study warned. Additionally, the study found 'no significant correlation' between the severity of the disease with 'age, sex, smoking status, TLC (total lung capacity) grading or lymphopenia.'