In West Bengal, another four suspected Corona virus patients were admitted into Beliaghata Infectious Diseases Hospital yesterday. Three of them arrived from Italy at Kolkata airport with symptoms of the Corona disease while remaining one is an employee at the airport. <br />'' <br />'' A Health Department official told that there was no confirmed Corona virus patient detected in the state so far. In all, 36 cases were tested negative as of now.<br />''<br />''Meanwhile, Poultry business in the state has been severely affected after outbreak of the disease.