United States records 1,225 coronavirus deaths in 24 hours (Johns Hopkins)
-30-
Coronavirus hopes and fears center on 'immunity' (AFP)
-30-
Scientists develop a method to help epidemiologists map spread of COVID-19 (Rochester Institute of Technology)
-29-
Evolution of pandemic coronavirus outlines path from animals to humans (Duke University Medical Center)
-29-
Virus ignited in US no earlier than mid-January, study says (AP)
-29-
New model predicts the peaks of the COVID-19 pandemic (Santa Fe Institute)
