Background Persistent inflammation related to aging (“inflammaging”) is exacerbated by
chronic infections and contributes to frailty in older adults. We hypothesized associations …

Introduction Lower respiratory tract infection is one of the leading causes of morbidity and
mortality all over the world, with a substantial impact on healthcare costs. In Egypt, local …

Coxiella burnetii is a zoonotic pathogen responsible for the human disease Q fever. While
an inactivated whole cell vaccine exists for this disease, its widespread use is precluded by …

The occurrence of acute myocarditis following the administration of mRNA vaccines against
SARS-CoV-2 remains relatively rare, and it is associated with a very low mortality rate. The …

Although the success of vaccination to date has been unprecedented, our inadequate
understanding of the details of the human immune response to immunization has resulted in …

Background The extent to which infection versus vaccination has conferred similarly durable
severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) immunity during the …

Many respiratory viruses, including coronaviruses, follow seasonal transmission dynamics.
Analyzing the social and environmental mechanics of the emergence of SARS-CoV-2 over …

Clostridioides difficile infection (CDI) is a serious healthcare-associated disease, causing
symptoms such as diarrhea and pseudomembranous colitis. The major virulence factors …

Background: This study investigated the impact of vaccinated population profiles, vaccine
type/interval, and the number of vaccine doses on adverse reactions to receiving a …

Background. Health care workers (HCWs) constantly stand at a high risk of exposure to the
hepatitis B virus because of the nature of their work. Hence, it is mandatory for HCWs to …