Andrea Haupt|December 23, 2021Estimated Effectiveness of COVID-19 Messenger RNA Vaccination Against SARS-CoV-2 Infection Among Older Male Veterans Health Administration Enrollees, January to September 2021 | JAMA Network
Andrea Haupt|December 23, 2021Breakthrough infections generate ‘super immunity’ to COVID-19, study suggests | MedicalXpress
Andrea Haupt|December 23, 2021Factors Associated With Household Transmission of SARS-CoV-2 | JN Learning