The four serotypes of dengue virus (DENV) cause dengue fever (DF) and dengue hemorrhagic fever/dengue shock syndrome (DHF/DSS). Severe disease has been associated with heterotypic secondary DENV infection, mediated by cross-reactive antibodies (Abs) and/or cross-reactive T cells. The role of cross-reactive immunity in mediating enhanced disease versus cross-protection against secondary heteroty...

Over the last year world experienced COVID-19 pandemic coupled with unprecedented policy responses. In this paper we examine determinants of infections and fatalities in a cross-country analysis. We find that countries greater income, less dense elderly populations, fewer hospital beds, more freedom fatalities, travel restrictions use hydroxychloroquine reduced deaths. However, little evidence ...

background and objective: urinary tract infection (utis) is one of the most common diagnosed infectious diseases. in order to determine the spectrum of bacterial etiology and antibiotic resistance pattern of the uropathogens that cause community acquired uti, a retrospective study was performed in research center of reference laboratories of iran on urine samples of referred patients during a 4...

BACKGROUND Influenza A (flu) virus causes significant morbidity and mortality worldwide, and current vaccines require annual updating to protect against the rapidly arising antigenic variations due to antigenic shift and drift. In fact, current subunit or split flu vaccines rely exclusively on antibody responses for protection and do not induce cytotoxic T (Tc) cell responses, which are broadly...

Background: Infectious diseases are major public health problems, among which blood-borne ones are the most important infections. Patients who undergo orthopedic surgery are at higher risk of transmitting infectious diseases from and to others, due to repeated blood examinations and injection, drains secretion and receiving blood products. Accordingly, in this study we determined prevalence of ...

Introduction: Healthcare- Associated Infections (HAI) are known to be one of the most important health issues in developed and developing countries. The most common infections include central line-associated bloodstream infections, catheter-associated urinary tract infections, ventilator-associated pneumonia and surgical site infection. The aim of this study was to investigate the incidence of ...