inclusion criteria: * patients age 18-100 admitted to hospital with laboratory-confirmed sars-cov-2 infection * not be intubated or mechanically ventilated or imminently at risk for same or icu admission within 24 hours of enrollment. * not be admitted for central nervous system (cns) diagnosis * not have a current history of a condition requiring full therapeutic anticoagulation such as venous thromboembolism, atrial fibrillation.

inclusion criteria: * patients age 18-100 admitted to hospital with laboratory-confirmed sars-cov-2 infection * not be intubated or mechanically ventilated or imminently at risk for same or icu admission within 24 hours of enrollment. * not be admitted for central nervous system (cns) diagnosis * not have a current history of a condition requiring full therapeutic anticoagulation such as venous thromboembolism, atrial fibrillation.

inclusion criteria: - patients age 18-100 admitted to hospital with laboratory-confirmed sars-cov-2 infection - not be intubated or mechanically ventilated or imminently at risk for same or icu admission within 24 hours of enrollment. - not be admitted for central nervous system (cns) diagnosis - not have a current history of a condition requiring full therapeutic anticoagulation such as venous thromboembolism, atrial fibrillation.

inclusion criteria: - patients age 18-100 admitted to hospital with laboratory-confirmed sars-cov-2 infection - not be intubated or mechanically ventilated or imminently at risk for same or icu admission within 24 hours of enrollment. - not be admitted for central nervous system (cns) diagnosis - not have a current history of a condition requiring full therapeutic anticoagulation such as venous thromboembolism, atrial fibrillation.