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Comparison of SARS-CoV-2 Variants of Concern 202012/01 (U.K. Variant) and D614G Variant Transmission by Different Routes in Syrian Hamsters.
Mohandas, Sreelekshmy; Yadav, Pragya D; Nyayanit, Dimpal; Shete, Anita; Sarkale, Prasad; Hundekar, Supriya; Kumar, Sanjay; Lole, Kavita.
  • Mohandas S; Indian Council of Medical Research-National Institute of Virology, Pune, India.
  • Yadav PD; Indian Council of Medical Research-National Institute of Virology, Pune, India.
  • Nyayanit D; Indian Council of Medical Research-National Institute of Virology, Pune, India.
  • Shete A; Indian Council of Medical Research-National Institute of Virology, Pune, India.
  • Sarkale P; Indian Council of Medical Research-National Institute of Virology, Pune, India.
  • Hundekar S; Indian Council of Medical Research-National Institute of Virology, Pune, India.
  • Kumar S; Department of Neurosurgery, Command Hospital (Southern Command), Armed Forces Medical College, Pune, India.
  • Lole K; Department of Neurosurgery, Command Hospital (Southern Command), Armed Forces Medical College, Pune, India.
Vector Borne Zoonotic Dis ; 21(8): 638-641, 2021 08.
Article in English | MEDLINE | ID: covidwho-1291190
ABSTRACT

Introduction:

Many SARS-CoV-2 variants of concern (VOC) have been reported recently that were linked to increased transmission. In our earlier study using VOC 202012/01 (U.K. variant) and D614G variant in the hamster model, we observed higher viral RNA shedding through nasal wash in the case of U.K. variant with lower pathogenicity in lung. In this study, we have studied transmission of these two variants by direct contact, aerosol, and fomite routes in Syrian hamsters and compared the viral load and body weight changes in hamsters exposed by both variants to understand the transmission efficiency.

Methods:

Nasal, throat, and rectal swabs were collected sequentially to assess viral load till 14 days.

Results:

Transmission could be established by direct, aerosol, and fomite contact in Syrian hamsters. Body weight loss or viral load in the contact animals exposed did not show any statistical significance.

Conclusion:

The study demonstrated comparable transmission of both U.K. and D614G variants of SARS-CoV-2 in Syrian hamsters in the given conditions. Provided these data, it seems that all the routes of exposure are effective leading to higher transmission.
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Full text: Available Collection: International databases Database: MEDLINE Main subject: SARS-CoV-2 / COVID-19 Topics: Variants Limits: Animals Country/Region as subject: Europa Language: English Journal: Vector Borne Zoonotic Dis Journal subject: Communicable Diseases / Epidemiology Year: 2021 Document Type: Article Affiliation country: Vbz.2021.0032

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Full text: Available Collection: International databases Database: MEDLINE Main subject: SARS-CoV-2 / COVID-19 Topics: Variants Limits: Animals Country/Region as subject: Europa Language: English Journal: Vector Borne Zoonotic Dis Journal subject: Communicable Diseases / Epidemiology Year: 2021 Document Type: Article Affiliation country: Vbz.2021.0032