Background Severe acute respiratory syndrome (SARS) is a condition of unknown cause
that has recently been recognized in patients in Asia, North America, and Europe. This report …

Background Several reports suggest that the incidence of invasive group A streptococcal
infections, including streptococcal toxic shock syndrome and necrotizing fasciitis, is increasing. …

PURPOSE: To determine the incidence of group A streptococcal necrotizing fasciitis in Ontario,
Canada, and to describe the clinical features, outcome, and microbiologic characteristics …

Background. We conducted a prospective cohort study to assess the impact of antiviral therapy
on outcomes of patients hospitalized with influenza in southern Ontario, Canada. Methods…

To determine factors that predispose or protect healthcare workers from severe acute
respiratory syndrome (SARS), we conducted a retrospective cohort study among 43 nurses who …

Although SARS-CoV-2 infects the upper respiratory tract, we know little about the amount,
type, and kinetics of antibodies (Ab) generated in the oral cavity in response to COVID-19 …

The physiologic importance of autophagy proteins for control of mammalian bacterial and
parasitic infection in vivo is unknown. Using mice with granulocyte- and macrophage-specific …

The role of host genetic factors in conferring predisposition or protection in infectious
diseases has become evident. Infection with group A streptococci causes a wide spectrum of …

Infection of healthcare workers with the severe acute respiratory syndrome–associated
coronavirus (SARS-CoV) is thought to occur primarily by either contact or large respiratory …

Electrical conduction is very rapid and highly anisotropic in atrial fiber bundles, such as the
crista terminalis. In contrast to left ventricular myocardium in which the ratio of longitudinal to …