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2 ημέρες πριν · A total of 217 individuals with confirmed SARS-CoV-2 infection were recruited between January and December 2021.Samples were collected <7 days after symptom onset. Based on available metadata, participants were classified as asymptomatic (n = 62) and symptomatic (n = 155).Cell phenotyping was performed on baseline samples from all 217 individuals and longitudinal samples up to 1 month post ...
1 ημέρα πριν · Importance The COVID-19 pandemic has led to 775 million documented cases and over 7 million deaths worldwide as of March 2024 and is an ongoing health crisis. To limit viral spread within households and in the community, public health officials have recommended self-isolation, self-quarantine of exposed household contacts, and mask use. Yet, risk of household transmission (HHT) may be ...
2 ημέρες πριν · Efficacy. The primary endpoint analysis in the PPE population revealed that a total of 98 individuals confirmed symptomatic SARS-CoV-2 infection within 7 days to 4 months post-vaccination by EAC ...
2 ημέρες πριν · 1. Background. The propagation of infectious diseases is characterized by various modes of transmission. Transfer of pathogenic agents can occur through contact with fomites, vectors (e.g. insects or animals), airborne aerosols, droplets or direct physical contact [].Notably, viral respiratory infections, primarily transmitted during social interactions via droplets, aerosols and physical ...
1 ημέρα πριν · Post-COVID syndrome (PCS) describes a persistent complex of symptoms following a COVID-19 episode, lasting at least 4 to 12 weeks, depending on the specific criteria used for its definition. It is often associated with moderate to severe impairments of daily life and represents a major burden for many people worldwide. However, especially during the first two years of the COVID-19 pandemic ...
3 ημέρες πριν · The name "coronavirus" is derived from Latin corona, meaning "crown" or "wreath", itself a borrowing from Greek κορώνη korṓnē, "garland, wreath". The name was coined by June Almeida and David Tyrrell who first observed and studied human coronaviruses. The word was first used in print in 1968 by an informal group of virologists in the journal Nature to designate the new family of viruses.
2 ημέρες πριν · Here, we conducted a scoping literature review for 14 respiratory pathogens to ascertain the extent of evidence for symptom propagation by two mechanisms: dose-severity relationships and route-severity relationships. We identify considerable heterogeneity between pathogens in the relative importance of the two mechanisms, highlighting the ...
