At least five states have put their health infrastructure on alert mode after the Centre’s directive to review readiness in view of a surge in respiratory illnesses among children in China. State governments in Rajasthan, Karnataka, Gujarat, Uttarakhand and Tamil Nadu have asked hospitals and healthcare staff to ensure preparedness to tackle patients complaining of respiratory issues. The Karnataka health department has also asked citizens to be aware of the seasonal flu. Listing the symptoms and risk factors of seasonal flu, the advisory also mentions dos and don’ts. These include covering the mouth and nose while coughing or sneezing, frequent washing of hands, avoiding touching the face, and using masks in crowded spots.