Background There is disagreement about the level of asymptomatic severe acute respiratory
syndrome coronavirus 2 (SARS-CoV-2) infection. We conducted a living systematic review …

Background Debate about the level of asymptomatic Severe Acute Respiratory Syndrome
Coronavirus 2 (SARS-CoV-2) infection continues. The amount of evidence is increasing and …

SARS-CoV-2 infections manifest with a broad spectrum of presentations, ranging from
asymptomatic infections to severe pneumonia and fatal outcomes. This review centers on …

Background Previous studies have observed that countries with the strongest levels of
pandemic preparedness capacities experience the greatest levels of COVID-19 burden …

Background: Asymptomatic SARS-CoV-2 infections have raised concerns for public health
policies to manage epidemics. This systematic review and meta-analysis aimed to estimate …

Pathogen interference is the ability of one pathogen to alter the course and clinical
outcomes of infection by another. With up to 3000 species of human pathogens the potential …

We assessed effectiveness of the BNT162b2 vaccine against infection with the B. 1.1. 529
(Omicron) variant (mostly BA. 1 subvariant), among children 5–11 years of age in Israel …

AIMS OF THE STUDY: Wastewater-based epidemiology has contributed significantly to the
comprehension of the dynamics of the current COVID-19 pandemic. Its additional value in …

Objective To evaluate maternal and neonatal outcomes of pregnant women who were
infected by COVID-19 during pregnancy. Study design A Case control retrospective study …

Vitamins C and D have well-known immune supportive roles, with deficiencies in both
vitamins predisposing to increased risk and severity of respiratory infections. Numerous …