Susceptibility and infectiousness of children and adults with SARS-CoV-2 variant B.1.1.7 deduced from three daycare centre outbreaks and related household situations; Germany, 2021

  1. Anna Loenenbach
  2. Inessa Markus
  3. Ann-Sophie Lehfeld
  4. Matthias an der Heiden
  5. Walter Haas
  6. Maya Kiegele
  7. André Ponzi
  8. Barbara Unger-Goldinger
  9. Cornelius Weidenauer
  10. Helen Schlosser
  11. Alexander Beile
  12. Udo Buchholz
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Abstract

We investigated three SARS-CoV-2 variant B.1.1.7 kindergarten outbreaks and related household situations. Despite group cohorting, cases occurred in almost all groups, i.e. also among persons without close contact. Secondary attack rates (SAR) of children were similar to adults (day care: 23% vs. 30%; p=0.15; households: 32% vs. 39%; p=0.27), and also child-induced household outbreaks led to similar SAR compared to adults. With the advent of B.1.1.7, susceptibility and infectiousness of children and adults seem to converge.

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