Danis: Did Danis et al. early in 2020 in their French Alps chalet study of a cluster of COVID cases, show no secondary transmission from a pedicatric case (even after visiting 3 schools)? The fact
that an infected child did not transmit the disease despite close interactions within schools suggested limited (near 0) transmission in children. Danis et al. showed us ealy children DID NOT spread
SOURCE:
https://pubmed.ncbi.nlm.nih.gov/32277759/
‘Background: On 7 February 2020, French Health authorities were informed of a confirmed case of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in an Englishman infected in Singapore who had recently stayed in a chalet in the French Alps.
Results: The index case stayed 4 days in the chalet with 10 English tourists and a family of 5 French residents; SARS-CoV-2 was detected in 5 individuals in France, 6 in England (including the index case), and 1 in Spain (overall attack rate in the chalet: 75%).
One pediatric case, with picornavirus and influenza A coinfection, visited 3 different schools while symptomatic.
One case was asymptomatic, with similar viral load as that of a symptomatic case. Seven days after the first cases were diagnosed, 1 tertiary case was detected in a symptomatic patient with from the chalet a positive endotracheal aspirate; all previous and concurrent nasopharyngeal specimens were negative. Additionally, 172 contacts were monitored; all contacts tested for SARS-CoV-2 (N = 73) were negative.
Conclusions: The occurrence in this cluster of 1 asymptomatic case with similar viral load as a symptomatic patient suggests transmission potential of asymptomatic individuals.
The fact that an infected child did not transmit the disease despite close interactions within schools suggests potential different transmission dynamics in children.’
Apparently the immune system of French enfants isn't terrible?
The paper fails to mention the number of cycles of the RT-PCR tests. The summary does not provide enough information to allow the reader to accept the conclusion of the authors that having a viral load, on the part of the asymptomatic positive case, as determined from the RT-PCR, similar to the symptomatic case viral load, supports the possibility of asymptomatic transmission.