PMID- 33189939 OWN - NLM STAT- MEDLINE DCOM- 20210217 LR - 20231019 IS - 1878-3511 (Electronic) IS - 1201-9712 (Print) IS - 1201-9712 (Linking) VI - 103 DP - 2021 Feb TI - Early transmission of SARS-CoV-2 in South Africa: An epidemiological and phylogenetic report. PG - 234-241 LID - S1201-9712(20)32322-5 [pii] LID - 10.1016/j.ijid.2020.11.128 [doi] AB - OBJECTIVES: The Network for Genomic Surveillance in South Africa (NGS-SA) was formed to investigate the introduction and understand the early transmission dynamics of the SARS-CoV-2 epidemic in South-Africa. DESIGN: This paper presents the first results from this group, which is a molecular epidemiological study of the first 21 SARS-CoV-2 whole genomes sampled in the first port of entry - KwaZulu-Natal (KZN) - during the first month of the epidemic. By combining this with calculations of the effective reproduction number (R), it aimed to shed light on the patterns of infections in South Africa. RESULTS: Two of the largest provinces - Gauteng and KZN - had a slow growth rate for the number of detected cases, while the epidemic spread faster in the Western Cape and Eastern Cape. The estimates of transmission potential suggested a decrease towards R = 1 since the first cases and deaths, but a subsequent estimated R average of 1.39 between 6-18 May 2020. It was also demonstrated that early transmission in KZN was associated with multiple international introductions and dominated by lineages B1 and B. Evidence for locally acquired infections in a hospital in Durban within the first month of the epidemic was also provided. CONCLUSION: The COVID-19 pandemic in South Africa was very heterogeneous in its spatial dimension, with many distinct introductions of SARS-CoV2 in KZN and evidence of nosocomial transmission, which inflated early mortality in KZN. The epidemic at the local level was still developing and NGS-SA aimed to clarify the dynamics in South Africa and devise the most effective measures as the outbreak evolved. CI - Copyright (c) 2020. Published by Elsevier Ltd. FAU - Giandhari, Jennifer AU - Giandhari J AD - KwaZulu-Natal Research Innovation and Sequencing Platform (KRISP), School of Laboratory Medicine & Medical Sciences, University of KwaZulu-Natal, Durban, South Africa. FAU - Pillay, Sureshnee AU - Pillay S AD - KwaZulu-Natal Research Innovation and Sequencing Platform (KRISP), School of Laboratory Medicine & Medical Sciences, University of KwaZulu-Natal, Durban, South Africa. FAU - Wilkinson, Eduan AU - Wilkinson E AD - KwaZulu-Natal Research Innovation and Sequencing Platform (KRISP), School of Laboratory Medicine & Medical Sciences, University of KwaZulu-Natal, Durban, South Africa. FAU - Tegally, Houriiyah AU - Tegally H AD - KwaZulu-Natal Research Innovation and Sequencing Platform (KRISP), School of Laboratory Medicine & Medical Sciences, University of KwaZulu-Natal, Durban, South Africa. FAU - Sinayskiy, Ilya AU - Sinayskiy I AD - Quantum Research Group, School of Chemistry and Physics, University of KwaZulu-Natal, Durban, South Africa; National Institute for Theoretical Physics (NITheP), KwaZulu-Natal, South Africa. FAU - Schuld, Maria AU - Schuld M AD - Quantum Research Group, School of Chemistry and Physics, University of KwaZulu-Natal, Durban, South Africa. FAU - Lourenco, Jose AU - Lourenco J AD - Department of Zoology, University of Oxford, Oxford, UK. FAU - Chimukangara, Benjamin AU - Chimukangara B AD - KwaZulu-Natal Research Innovation and Sequencing Platform (KRISP), School of Laboratory Medicine & Medical Sciences, University of KwaZulu-Natal, Durban, South Africa. FAU - Lessells, Richard AU - Lessells R AD - KwaZulu-Natal Research Innovation and Sequencing Platform (KRISP), School of Laboratory Medicine & Medical Sciences, University of KwaZulu-Natal, Durban, South Africa; Department of Zoology, University of Oxford, Oxford, UK. FAU - Moosa, Yunus AU - Moosa Y AD - Department of Zoology, University of Oxford, Oxford, UK. FAU - Gazy, Inbal AU - Gazy I AD - KwaZulu-Natal Research Innovation and Sequencing Platform (KRISP), School of Laboratory Medicine & Medical Sciences, University of KwaZulu-Natal, Durban, South Africa. FAU - Fish, Maryam AU - Fish M AD - KwaZulu-Natal Research Innovation and Sequencing Platform (KRISP), School of Laboratory Medicine & Medical Sciences, University of KwaZulu-Natal, Durban, South Africa. FAU - Singh, Lavanya AU - Singh L AD - KwaZulu-Natal Research Innovation and Sequencing Platform (KRISP), School of Laboratory Medicine & Medical Sciences, University of KwaZulu-Natal, Durban, South Africa. FAU - Sedwell Khanyile, Khulekani AU - Sedwell Khanyile K AD - KwaZulu-Natal Research Innovation and Sequencing Platform (KRISP), School of Laboratory Medicine & Medical Sciences, University of KwaZulu-Natal, Durban, South Africa. FAU - Fonseca, Vagner AU - Fonseca V AD - KwaZulu-Natal Research Innovation and Sequencing Platform (KRISP), School of Laboratory Medicine & Medical Sciences, University of KwaZulu-Natal, Durban, South Africa; Laboratorio de Genetica Celular e Molecular, ICB, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil; Laboratorio de Flavivirus, Instituto Oswaldo Cruz Fiocruz, Rio de Janeiro, Brazil. FAU - Giovanetti, Marta AU - Giovanetti M AD - Laboratorio de Flavivirus, Instituto Oswaldo Cruz Fiocruz, Rio de Janeiro, Brazil. FAU - Carlos Junior Alcantara, Luiz AU - Carlos Junior Alcantara L AD - Laboratorio de Genetica Celular e Molecular, ICB, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil; Laboratorio de Flavivirus, Instituto Oswaldo Cruz Fiocruz, Rio de Janeiro, Brazil. FAU - Petruccione, Francesco AU - Petruccione F AD - Quantum Research Group, School of Chemistry and Physics, University of KwaZulu-Natal, Durban, South Africa; National Institute for Theoretical Physics (NITheP), KwaZulu-Natal, South Africa. FAU - de Oliveira, Tulio AU - de Oliveira T AD - KwaZulu-Natal Research Innovation and Sequencing Platform (KRISP), School of Laboratory Medicine & Medical Sciences, University of KwaZulu-Natal, Durban, South Africa; Centre for Aids Programme of Research in South Africa (CAPRISA), Durban, South Africa; Department of Global Health, University of Washington, Seattle, Washington, USA. Electronic address: deoliveira@ukzn.ac.za. LA - eng PT - Journal Article DEP - 20201112 PL - Canada TA - Int J Infect Dis JT - International journal of infectious diseases : IJID : official publication of the International Society for Infectious Diseases JID - 9610933 SB - IM UOF - medRxiv. 2020 May 30;:. PMID: 32511505 MH - COVID-19/*transmission MH - Humans MH - *Phylogeny MH - SARS-CoV-2/*genetics MH - South Africa/epidemiology PMC - PMC7658561 OTO - NOTNLM OT - Epidemiology OT - NGS-SA OT - Next Generation Sequencing OT - Phylogenetic OT - SARS-CoV-2 OT - South Africa OT - Transmission genomics EDAT- 2020/11/16 06:00 MHDA- 2021/02/18 06:00 PMCR- 2020/11/12 CRDT- 2020/11/15 20:26 PHST- 2020/06/18 00:00 [received] PHST- 2020/11/02 00:00 [revised] PHST- 2020/11/05 00:00 [accepted] PHST- 2020/11/16 06:00 [pubmed] PHST- 2021/02/18 06:00 [medline] PHST- 2020/11/15 20:26 [entrez] PHST- 2020/11/12 00:00 [pmc-release] AID - S1201-9712(20)32322-5 [pii] AID - 10.1016/j.ijid.2020.11.128 [doi] PST - ppublish SO - Int J Infect Dis. 2021 Feb;103:234-241. doi: 10.1016/j.ijid.2020.11.128. Epub 2020 Nov 12.