Mumbai : The city reported six new swine flu cases on Monday taking the total count of swine flu cases to 190 since July. The influenza virus has so far claim-ed lives of 28 people in the city. City doctors claim that the vir-us is attacking those people whose immunity system is we-ak and those falling under the high-risk categories as they are more prone to falling prey to the disease. Civic officials stated that people need to identify the symptoms of fever, breath-lessness and muscle-ache and visit a doctor at the earliest in order to avoid complications. They added that delay in diag-nosis and treatment can lead to serious illnesses in the future due to respiratory and organ failures. Dr Om Srivastava, head of infectious diseases depart-ment at Jaslok Hospital, said, “The virus has aggravated in the city owing to temperature change. The best that can be done at the moment is that people must be alert and visit a doctor if diagnosed with flu-like symptoms. Also, people need to complete their medic-ation and not skip doses.”