Author: Yasuhiko Kamikubo; Atsushi Takahashi
Title: Epidemiological Tools that Predict Partial Herd Immunity to SARS Coronavirus 2 Document date: 2020_3_27
ID: 7onenxg7_9
Snippet: We examined whether viral subtypes isolated from countries outside China are correlated with patterns of SARS-CoV-2 epidemics. As shown in Table 1 , lower ratio of isolated S type is associated with delayed spread of SARS-CoV-2. Moreover, the epidemic seems to be subsiding in areas where S type virus is predominant. These results prompted us to hypothesize that (i) S type SARS-CoV-2 exit Wuhan or other epicenter in China earlier than L type virus.....
Document: We examined whether viral subtypes isolated from countries outside China are correlated with patterns of SARS-CoV-2 epidemics. As shown in Table 1 , lower ratio of isolated S type is associated with delayed spread of SARS-CoV-2. Moreover, the epidemic seems to be subsiding in areas where S type virus is predominant. These results prompted us to hypothesize that (i) S type SARS-CoV-2 exit Wuhan or other epicenter in China earlier than L type virus without recognition by infectious disease surveillance systems of China and other countries; (ii) the infection by S type induced herd immunity that provides at least partial protection against spread of SARS-CoV-2.
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