The COVID-19 pandemic has thrown up myriad questions, including how contagious the coronavirus which causes the disease is. One common way of expressing this is what experts who study the spread of ...

The coronavirus disease 2019 (COVID-19) pandemic started with an outbreak of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in Wuhan, Hubei province, China, in December 2019. Since ...

If you saw the 2011 movie "Contagion," about a worldwide pandemic of a new virus, then you've heard the term R0. Pronounced "R naught," this isn't just jargon made up in Hollywood. It represents an ...

We published an article earlier this month that contained incorrect estimates for the basic reproduction number (R0) for COVID subvariants BA.4/BA.5 and BA.2. We have now corrected the error, but I ...

In times of Corona, everybody looks at the reproduction number. However, this important number is subject to uncertainties. Researchers of Karlsruhe Institute of Technology (KIT) now present a method ...

As the novel coronavirus continues to spread widely in China and around the world, scientists are racing to understand how infectious the disease is and to project how many more people could be ...