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Genomic surveillance of SARS-CoV-2 in US military compounds in Afghanistan reveals multiple introductions and outbreaks of Alpha and Delta variants.
Maljkovic Berry, Irina; Hang, Jun; Fung, Christian; Yang, Yu; Chibucos, Marcus; Pollio, Adam; Gandhi, Jay; Li, Tao; Conte, Matthew A; Lidl, Grace M; Johannigman, Jay A; Friberg, Heather.
  • Maljkovic Berry I; Viral Diseases Branch, Walter Reed Army Institute of Research, 503 Robert Grant Ave, Silver Spring, MD, 20910, USA. Irina.maljkovicberry@nih.gov.
  • Hang J; Viral Diseases Branch, Walter Reed Army Institute of Research, 503 Robert Grant Ave, Silver Spring, MD, 20910, USA.
  • Fung C; Viral Diseases Branch, Walter Reed Army Institute of Research, 503 Robert Grant Ave, Silver Spring, MD, 20910, USA.
  • Yang Y; Viral Diseases Branch, Walter Reed Army Institute of Research, 503 Robert Grant Ave, Silver Spring, MD, 20910, USA.
  • Chibucos M; Viral Diseases Branch, Walter Reed Army Institute of Research, 503 Robert Grant Ave, Silver Spring, MD, 20910, USA.
  • Pollio A; Viral Diseases Branch, Walter Reed Army Institute of Research, 503 Robert Grant Ave, Silver Spring, MD, 20910, USA.
  • Gandhi J; Viral Diseases Branch, Walter Reed Army Institute of Research, 503 Robert Grant Ave, Silver Spring, MD, 20910, USA.
  • Li T; Viral Diseases Branch, Walter Reed Army Institute of Research, 503 Robert Grant Ave, Silver Spring, MD, 20910, USA.
  • Conte MA; Viral Diseases Branch, Walter Reed Army Institute of Research, 503 Robert Grant Ave, Silver Spring, MD, 20910, USA.
  • Lidl GM; Viral Diseases Branch, Walter Reed Army Institute of Research, 503 Robert Grant Ave, Silver Spring, MD, 20910, USA.
  • Johannigman JA; Uniformed Services University of the Health Sciences, Bethesda, MD, USA.
  • Friberg H; Viral Diseases Branch, Walter Reed Army Institute of Research, 503 Robert Grant Ave, Silver Spring, MD, 20910, USA.
BMC Genomics ; 23(1): 513, 2022 Jul 15.
Article in English | MEDLINE | ID: covidwho-1938288
ABSTRACT

BACKGROUND:

With the emergence and spread of SARS-CoV-2 variants, genomic epidemiology and surveillance have proven invaluable tools for variant tracking. Here, we analyzed SARS-CoV-2 samples collected from personnel located at the US/NATO bases across Afghanistan.

RESULTS:

Sequencing and phylogenetic analyses revealed at least 16 independent introductions of SARS-CoV-2 into four of these relatively isolated compounds during April and May 2021, including multiple introductions of Alpha and Delta variants. Four of the introductions resulted in sustained spread of the virus within, and in two cases between, the compounds. Three of these outbreaks, one Delta and two Alpha, occurred simultaneously.

CONCLUSIONS:

Even in rigorously controlled and segregated environments, SARS-CoV-2 introduction and spread may occur frequently.
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Full text: Available Collection: International databases Database: MEDLINE Main subject: COVID-19 / Military Personnel Type of study: Experimental Studies / Observational study / Randomized controlled trials Topics: Variants Limits: Humans Country/Region as subject: Asia Language: English Journal: BMC Genomics Journal subject: Genetics Year: 2022 Document Type: Article Affiliation country: S12864-022-08757-5

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Full text: Available Collection: International databases Database: MEDLINE Main subject: COVID-19 / Military Personnel Type of study: Experimental Studies / Observational study / Randomized controlled trials Topics: Variants Limits: Humans Country/Region as subject: Asia Language: English Journal: BMC Genomics Journal subject: Genetics Year: 2022 Document Type: Article Affiliation country: S12864-022-08757-5