Adaptive immune responses play critical roles in viral clearance and protection against re‐
infection, and SARS‐CoV‐2 is no exception. What is exceptional is the rapid …

Epidemics generally spread through a succession of waves that reflect factors on multiple
timescales. On short timescales, superspreading events lead to burstiness and …

Summary Background The SARS-CoV-2 omicron (B. 1.1. 529) variant, which was first
identified in November, 2021, spread rapidly in many countries, with a spike protein highly …

In the studies to date, the estimated fold-drop in neutralisation titre against Omicron ranges
from 2-to over 20-fold depending on the study and serum tested. Collating data from the first …

Latin America has been severely affected by the COVID-19 pandemic but estimations of
rates of infections are very limited and lack the level of detail required to guide policy …

The outbreak and spread of SARS-CoV-2 (severe acute respiratory syndrome-coronavirus-
2) is a current global health emergency, and effective prophylactic vaccines are needed …

Background A year following the onset of the COVID-19 pandemic, new infections and
deaths continue to increase in Europe. Serological studies, through providing evidence of …

With the emergence of the SARS-CoV-2 Omicron variant in late 2021, Canadian public
health case/contact testing was scaled back due to high infection rates with milder symptoms …

Pathogenic mutations in mitochondrial (mt) tRNA genes that compromise oxidative
phosphorylation (OXPHOS) exhibit heteroplasmy and cause a range of multisyndromic …

Background In a country-wide seroprevalence study of COVID-19 in Estonia, we aimed to
determine the seroprevalence and the dynamics of IgG against SARS-CoV-2 after …