We are currently approaching three years since the beginning of the coronavirus disease
2019 (COVID-19) pandemic. SARS-CoV-2 has caused extensive disruptions in everyday …

Background: Some oral lesions have been described in patients infected with severe acute
respiratory syndrome coronavirus 2 (SARS-CoV-2); the possibility has been raised that the …

Background To date, only a few studies reported data regarding the development of
mucosal immune response after the BNT162b2-booster vaccination. Methods Samples of …

Limited data is available on the effect of vaccination and previous virus exposure on the
nature of SARS-CoV-2 transmission and immune-pressure on variants. To understand the …

The global rollout of COVID-19 vaccines has played a critical role in reducing pandemic
spread, disease severity, hospitalizations, and deaths. However, the first-generation …

mRNA-based vaccines were effective in contrasting SARS-CoV-2 infection. However, they
presented several limitations of storage and supply chain, and their parenteral …

The ongoing SARS-CoV-2 pandemic is controlled but not halted by public health measures
and mass vaccination strategies which have exclusively relied on intramuscular vaccines …

Objectives As the world transitions to COVID-19 endemicity, studies focusing on aerosol
shedding of highly transmissible SARS-CoV-2 variants of concern (VOCs) are vital for the …

The role of the mucosal pulmonary antibody response in coronavirus disease 2019 (COVID-
19) outcome remains unclear. Here, we found that in bronchoalveolar lavage (BAL) samples …

Introduction Adjuvant plays an important role in directing the immune responses induced by
vaccines. In previous studies, we have shown that a mucosal SARS-CoV-2 S1 subunit …