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Substitution Spectra Of Sars-Cov-2 Genome From Pakistan Reveals Insights Into The Evolution Of Variants Across The Pandemic, Javaria Ashraf, Sayed Ali Raza Bukhari, Akber Kanji, Tulaib Iqbal, Maliha Yameen, Waqasuddin Khan, Zahra Hasan
Substitution Spectra Of Sars-Cov-2 Genome From Pakistan Reveals Insights Into The Evolution Of Variants Across The Pandemic, Javaria Ashraf, Sayed Ali Raza Bukhari, Akber Kanji, Tulaib Iqbal, Maliha Yameen, Waqasuddin Khan, Zahra Hasan
Department of Pathology and Laboratory Medicine
Changing morbidity and mortality due to COVID-19 across the pandemic has been linked with factors such as the emergence of SARS-CoV-2 variants and vaccination. Mutations in the Spike glycoprotein enhanced viral transmission and virulence. We investigated whether SARS-CoV-2 mutation rates and entropy were associated COVID-19 in Pakistan, before and after the introduction of vaccinations. We analyzed 1,705 SARS-CoV-2 genomes using the Augur phylogenetic pipeline. Substitution rates and entropy across the genome, and in the Spike glycoprotein were compared between 2020, 2021 and 2022 (as periods A, B and C). Mortality was greatest in B whilst cases were highest during C. …