With six deaths due to swine flu recorded in Mumbai and five more casualties reported in Rajasthan, India on Tuesday, the toll increases to 40 in Maharashtra and 100 in Rajasthan.
A total of 205 swine flu cases have been recorded in Maharashtra, according to the state authorities, while 49 fresh cases were reported in Delhi with the total number of cases due to the disease going up to 488 this year.
Reports add that all civic hospitals in Mumbai have been asked to keep at least two ventilators on standby for H1N1 patients and an adequate stock of Tamiflu has been procured.
The BMC has also reportedly started a helpline over the outbreak.
Swine flu is caused by the H1N1 virus. H1N1 symptoms are similar to those produced by other influenza viruses - fever, cough, sore throat, body aches and respiratory problems.
Symptoms for swine flu include high fever, headache, muscle pain, diarrhoea, vomiting, stomach pain and internal and external bleeding. It is transmitted to people primarily from ticks and livestock animals with an incubation period of up to nine days. Human-to-human transmission takes up to two weeks.