KARACHI: Over 1,500 people in Karachi's Malir area have fallen victim of a mysterious viral infection about which experts are unaware too. The doctors have advised the patients to avoid taking antibiotics on their own and only administer painkillers. According to details, people in Malir's Khokhrapar locality were suffering from the disease, the doctors have not been able to identify. Senior Health Director, Dr. Abdul Wahid Panwar said the patients are complaining of high grade fever, severe pain in joints and bones and loss of platelets. The hospital administration said that people of all ages are getting affected of this, however, no casualty has been reported. The symptoms are very much like dengue, said Dr Wahid, adding that the initial investigations concluded that mosquito is likely the cause of the spread. Sindh Chief Minister Syed Murad Ali Shah has taken notice of it and directed to provide better medical facilities for the patients at Malir and Saudabad hospitals.