Publications by authors named "S L Yingst"

Article Synopsis
  • * Our findings identified new or previously unclassified viruses, including murine adenovirus 4 and two new species from the paramyxovirus and picornavirus families.
  • * The study highlights rodents as significant carriers for potential zoonotic viruses, which could pose risks to human health in the future.
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SARS-CoV-2 serosurveys help estimate the extent of transmission and guide the allocation of COVID-19 vaccines. We measured SARS-CoV-2 seroprevalence among women attending ANC clinics to assess exposure trends over time in Zambia. We conducted repeated cross-sectional SARS-CoV-2 seroprevalence surveys among pregnant women aged 15-49 years attending their first ANC visits in four districts of Zambia (two urban and two rural) during September 2021-September 2022.

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Article Synopsis
  • PEPFAR supports diagnostic networks for HIV and tuberculosis in low and middle-income countries, which were leveraged for SARS-CoV-2 testing during the COVID-19 pandemic.
  • From April 2020 to March 2021, 27 countries reported on the use of these networks, with a focus on 46 key indicators for COVID-19 response activities.
  • Overall, participating labs contributed to over 3.4 million SARS-CoV-2 tests, demonstrating the effectiveness of PEPFAR resources in emergency health responses.
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During the July 2020 first wave of severe acute respiratory syndrome coronavirus 2 in Zambia, PCR-measured prevalence was 13.4% among outpatients at health facilities, an absolute difference of 5.7% compared with prevalence among community members.

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Background: Healthcare workers (HCWs) in Zambia have become infected with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the virus that causes coronavirus disease 2019 (COVID-19). However, SARS-CoV-2 prevalence among HCWs is not known in Zambia.

Methods: We conducted a cross-sectional SARS-CoV-2 prevalence survey among Zambian HCWs in 20 health facilities in 6 districts in July 2020.

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