New Delhi, March 21 -- When SARI grabs headlines without sartorial connotations outside the lifestyle sections of the media, it means trouble. SARI is the acronym for severe acute respiratory infections, which involves the history of a fever higher than 38 Cdeg and cough for over 10 days. It necessitates hospitalisation. Most SARI cases need intensive care unit (ICU) admissions with ventilator support.

Severe forms of SARI include severe pneumonia, Acute Respiratory Distress Syndrome (ARDS), sepsis and septic shock. These are the cause of deaths from coronaviruses, including coronavirus disease (Covid-19), Middle-east Respiratory Syndrome (Mers), and Severe Acute Respiratory Syndrome (Sars).

While causative organism for SARI could be bact...