NEW DELHI: The Delhi government on Friday issued an advisory on Covid, asking hospitals to prepare for availability of beds, oxygen, medicines and vaccines.The government has asked the health institutions to send all positive samples for genome sequencing to Lok Nayak Hospital.Health authorities are closely monitoring a rise in Covid cases across multiple states, amid a resurgence of infections in parts of Asia, including Hong Kong and Singapore. While overall case numbers remain low compared to previous waves, cities such as Mumbai, Chennai and Ahmedabad have reported small but notable surge in infections.Mumbai has reported 95 new Covid cases in May — a significant increase…