Social-political and vaccine related determinants of COVID-19 vaccine hesitancy in Tanzania: a qualitative inquiry (Publications)
Vaccines have played a critical role in the response to the COVID-19 pandemic globally, and Tanzania has made significant efforts to make them available to the public in addition to sensitizing them o
Decreasing incidence of conjunctival squamous cell carcinoma in people with HIV in South Africa (Publications)
BACKGROUND: The main risk factors for squamous cell carcinoma of the conjunctiva (SCCC) are immunodeficiency and exposure to ultraviolet radiation. Little is known about the SCCC epidemiology among pe
Sexual and reproductive health services use among adolescents in pastoralist settings, northeastern Ethiopia (Publications)
BACKGROUND: Adolescents have special sexual and reproductive health (ASRH) needs and are susceptible to poor health outcomes. The global burden of ill sexual health includes a significant proportion o
Antibody and B cell responses to SARS-CoV-2 infection and vaccination (Publications)
Antibodies, and the B cell and plasma cell populations responsible for their production, are key components of the human immune system's response to SARS-CoV-2, which has caused the coronavirus diseas
Human B cell clonal expansion and convergent antibody responses to SARS-CoV-2 (Publications)
B cells are critical for the production of antibodies and protective immunity to viruses. Here we show that patients infected with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) who deve
Severe acute respiratory coronavirus virus 2 (SARS-CoV-2) seroprevalence in healthcare personnel in northern California early in the coronavirus... (Publications)
OBJECTIVE: We assessed the magnitude of unidentified coronavirus disease 2019 (COVID-19) in our healthcare personnel (HCP) early in the COVID-19 pandemic, and we evaluated risk factors for infection t
Defining the features and duration of antibody responses to SARS-CoV-2 infection associated with disease severity and outcome (Publications)
SARS-CoV-2-specific antibodies, particularly those preventing viral spike receptor binding domain (RBD) interaction with host angiotensin-converting enzyme 2 (ACE2) receptor, can neutralize the virus.
Large-scale testing of asymptomatic healthcare personnel for severe acute respiratory syndrome coronavirus 2 (Publications)
Large-scale, 1-time testing of > 12,000 asymptomatic healthcare personnel in California, USA, during April-June 2020 showed that prevalence of severe acute respiratory syndrome coronavirus 2 was low (