Six H1N1 cases have been reported in the Haryana districts of Ambala and Yamunanagar, prompting health authorities to strengthen surveillance and issue an advisory. Ambala civil surgeon Dr Renu Beri said three cases were reported in Ambala, including a four-year-old girl who suffered a seizure and was referred to PGIMER, Chandigarh. One patient is admitted to Railway Hospital, while another is undergoing treatment at a private hospital. Yamunanagar has also reported three cases. Isolation wards have been prepared at government hospitals, and arrangements have been made for testing and treatment. Government and private healthcare facilities have been directed to notify cases to the health department. People with fever, cough, sore throat, or breathing difficulty have been advised to take precautions.