Background After the first COVID-19 wave caused by the ancestral lineage, the pandemic
has been fueled from the continuous emergence of new SARS-CoV-2 variants …

The COVID-19 pandemic demonstrated the key role that epidemiology and modelling play
in analysing infectious threats and supporting decision making in real-time. Motivated by the …

The large-scale evolution of the SARS-CoV-2 virus has been marked by rapid turnover of
genetic clades. New variants show intrinsic changes, notably increased transmissibility, and …

To support the ongoing management of viral respiratory diseases while transitioning out of
the acute phase of the COVID-19 pandemic, many countries are moving toward an …

The generation time distribution, reflecting the time between successive infections in
transmission chains, is a key epidemiological parameter for describing COVID-19 …

There are limited data comparing the transmission rates and kinetics of viable virus
shedding of the Omicron variant to those of the Delta variant. We compared these rates in …

To the Editor: Ogata and Tanaka (1) estimated the mean incubation period was 2.9 (95% CI
2.6–3.2) days for SARS-CoV-2 strain Omicron BA. 1 and 2.6 (95% CI 2.5–2.8) days for …

Understanding and accurately estimating epidemiological delay distributions is important for
public health policy. These estimates directly influence epidemic situational awareness …

Despite a relatively low mutation rate, the large number of severe acute respiratory
syndrome coronavirus 2 (SARS-CoV-2) infections has allowed for substantial genetic …

Recombination plays a crucial role in the evolution of SARS-CoV-2. The Omicron XBB*
recombinant lineages are a noteworthy example, as they have been the dominant SARS …