Michael A. Johansson

TL;DR: In this article, a decision analytical model assessed the relative amount of transmission from presymptomatic, never symptomatic, and symptomatic individuals across a range of scenarios in which the proportion of transmissions from people who never develop symptoms (i.e., remain asymptotic) and the infectious period were varied according to published best estimates.

TL;DR: The B.1.7 variant is estimated to have emerged in September 2020 and has quickly become the dominant circulating SARS-CoV-2 variant in England (1) as discussed by the authors.

TL;DR: These incubation period models should be useful in clinical diagnosis, outbreak investigation, prevention and control efforts, and mathematical modeling of dengue virus transmission.

TL;DR: An analysis of data from Brazil reveals a strong association between the risk of microcephaly in a newborn and therisk of Zika virus infection during the mother's first trimester of pregnancy.

TL;DR: It is shown that an epidemiological model of dengue transmission in travelers, based on mobility data from ∼40 million mobile phone subscribers and climatic information, predicts the geographic spread and timing of epidemics throughout the country.