aim of the research is to detect hematological abnormalities in covid 19 patients and its correlation with the severity and outcome of the disease.

Covid 19 is an infectious disease caused by a newly discovered coronavirus.most people infected with the covid 19 virus will have mild to moderate respiratory illness and recover without specific treatment.older people and those with underlying medical problems like cardiac diseases,diabetes,any chronic respiratory disease and cancer are more likely to have serious illness.the covid 19 virus spreads primarily through droplets of saliva or discharge from the nose oral cavity when an infected person coughs or sneezes.people with covid19 have had a wide range of symptoms reported _ranging from mild to severe symptoms.symptoms may appear 2_14 days after exposure to the infection .any one can have mild to severe symptoms.people with these symptoms may have covid 19: fever or shivering,cough,shortness of breath,fatigue,body or muscle aches,headache,new loss of smell or taste ,sore thraot,congestion or running nose , nausea or vomiting,diarrhoea.

The most common hematological clinical findings include lymphocytopenia,neutrophilia,eosinophilia,mild thrombocytopenia,and less frequently thrombocytosis,the presence of reactive lymphocytes has been reported only occasionally the leucocyte count may be normal,reduced or increased.according to a meta analysis leucocytosis,lymphopenia and thrombocytopenia are associated with greater severity and fatality in covid 19 cases

Inclusion Criteria:

all covid 19 patients diagnosed by pcr or CT chest

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Exclusion Criteria:

• No

Covid 19 patients ranging from 18 years old to 90 years old