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HGNC Genes

SARS-CoV-2 proteins

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    Estimating transmission dynamics and serial interval of the first wave of COVID-19 MESHD infections under different control measures: A statistical analysis in Tunisia from February 29 to May 5, 2020 

    Authors: Khouloud Talmoudi; Mouna Safer; Hejer Letaief; Aicha Hchaichi; Chahida Harizi; Sonia Dhaouadi; Sondes Derouiche; Ilhem Bouaziz; Donia Gharbi; Nourhene Najar; Molka Osman; Ines Cherif; Rym Mlallekh; Oumaima Ben-Ayed; Yosr Ayedi; Leila Bouabid; Souha Bougatef; Nissaf Bouafif ép Ben-Alaya; Mohamed Kouni Chahed

    doi:10.21203/rs.3.rs-31349/v3 Date: 2020-05-26 Source: ResearchSquare

    Background: Describing transmission dynamics of the outbreak and impact of intervention measures are critical to planning responses to future outbreaks and providing timely information to guide policy makers decision. We estimate serial interval (SI) and temporal reproduction number (Rt) of S ARS-CoV-2 MESHDin Tunisia. Methods: We collected data of investigations and contact tracing between M arch 1, HGNC 2020 and May 5, 2020 as well as illness onset data during the period February 29-May 5, 2020 from National Observatory of New and E merging Diseases of Tunisia. MESHD Maximum likelihood (ML) approach is used to estimate dynamics of Rt. Results: 491 of infector-infectee pairs were involved, with 14.46% reported pre-symptomatic transmission. SI follows Gamma distribution with mean 5.30 days [95% Confidence Interval (CI) 4.66-5.95] and standard deviation 0.26 [95% CI 0.23-0.30]. Also, we estimated large changes in Rt in response to the combined lockdown interventions. The Rt moves from 3.18 [95% Credible Interval (CrI) 2.73-3.69] to 1.77 [95% C rI 1. HGNC49-2.08] with curfew prevention measure, and under the epidemic threshold (0.89 [95% CrI 0.84-0.94]) by national lockdown measure.Conclusions: Overall, our findings highlight contribution of interventions to interrupt transmission of S ARS-CoV-2 MESHDin Tunisia. 

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MeSH Disease
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SARS-CoV-2 Proteins


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