PB2273: ANALYSIS OF THE HAEMATOLOGICAL PARAMETERS AND BLOOD PICTURE FINDINGS AND THEIR IMPACT ON THE DURATION OF STAY IN A COHORT OF PATIENTS WITH COVID 19 INFECTION IN A TERTIARY CARE HOSPITAL IN SRI LANKA. (23rd June 2022) - Kariyawasan, C.; Gunaratne, D.; Samarasekara, U.; Fernando, T.; Ranatunga, C.