Publications by authors named "Stephen O Nyarko"

Background The World Health Organization recommends surveillance of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) at points of entry to systematically collect and analyze data to inform decisions about the effective and appropriate use of resources needed for interventions. This study sought to determine the prevalence of SARS-CoV-2 and its variants imported into Ghana by travelers entering the country via land borders from February to July 2022. Methods A cross-sectional approach was employed, where recruited participants consented to the collection of oropharyngeal and nasopharyngeal samples.

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Introduction: The COVID-19 pandemic had a significant effect on influenza activity globally. In this study, we analyzed trends of influenza activity in 2020 during the COVID-19 pandemic in Ghana.

Methods: This was a cross-sectional study using active prospective influenza surveillance data from 29 sentinel sites.

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Article Synopsis
  • The study investigated how influenza and bacterial infections contribute to acute respiratory infections in cancer patients undergoing radiotherapy, a group often overlooked in this context.
  • Conducted on 85 patients at a hospital in Accra, Ghana, the research found that a significant majority (88%) were infected with at least one pathogen, with N. meningitidis being the most commonly detected.
  • About 65% of the participants exhibited ARI-like symptoms, and various factors—such as previous ARI episodes and treatment type—were linked to a higher risk of developing these symptoms.
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Introduction: Avian influenza viruses (AIV) cause significant economic losses to poultry farmers worldwide. These viruses have the ability to spread rapidly, infect entire poultry flocks, and can pose a threat to human health. The National Influenza Centre (NIC) at the Noguchi Memorial Institute for Medical Research in collaboration with the Ghana Armed forces (GAF) and the U.

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