BACKGROUND & AIMS Moderate cure rates of acute hepatitis C virus (HCV) infections with pegylated interferon and ribavirin have been described in the last decade in men who have sex with men (MSM), who are also coinfected with the human immunodeficiency virus (HIV). However, a subsequent high incidence of HCV reinfections has been reported regionally in men who both clear the infection spontaneo...

There is a paucity of data on whether or not women can be reinfected with human papillomavirus (HPV) types to which they were exposed to earlier in life and on the role of natural immunity. The observation of HPV infection at older ages may be explained by the reactivation of a latent infection or new exposure from sexual activity. Our objective was to analyze the association between reinfectio...

Determining the magnitude of chlamydia and gonorrhea reinfection is critical to inform evidence-based clinical practice guidelines related to retesting after treatment. PubMed was used to identify peer-reviewed English language studies published in the past 30 years that estimated reinfection rates among females treated for chlamydia or gonorrhea. Included in this analysis were original studies...

Rabbits infected intradermally with 10(3) Treponema pallidum (Melbourne 1) cells were examined for their susceptibility to reinfection with 10(2) T. pallidum cells (homologous or heterologous strains) at various intervals after the initial infection. At 2.5 weeks after infection, the rabbits were extremely sensitive to reinfection and developed syphilitic lesions significantly faster (i.e., sho...

BACKGROUND Detection of hepatitis C virus (HCV) reinfection and intercalation (ie, intermittent recurrent bouts of viremia with homologous virus interspersed with aviremic periods) requires extensive and frequent evaluation and viral sequencing. METHODS HCV infection outcomes were studied prospectively in active injection drug users with recurrent HCV RNA-positive tests after serial negative ...

the risk of tuberculous infection is high [8, 9]. Our patient, and others described in previous reports [2-4], were in environments where they were heavily exposed to M. tuberculosis. In addition to varying degrees of immunosuppression, high levels of exposure to M. tuberculosis likely contributed to their risk of reinfection. The case described herein illustrates that diabetes may be a risk fa...

Cytomegalovirus (CMV) reinfections have been associated with damaging congenital infection and adverse outcomes in transplant recipients. To determine the frequency of and risk factors for CMV reinfections, 205 seropositive women were followed up prospectively. The appearance of new antibody specificity against 1 of 4 polymorphic epitopes was considered as evidence of CMV reinfection. Approxima...

OBJECTIVES Gonorrhoea is associated with adverse reproductive health outcomes, including pelvic inflammatory disease and increased HIV transmission. Our objective was to determine the association of demographic factors, sexual risk behaviours, and drug use with incident gonorrhoea reinfection among public STD clinic clients. METHODS A retrospective cohort study conducted from January 1994 thr...

A clinical investigation was undertaken to determine if chemoprophylaxis in the form of a contraceptive pessary would reduce the rate of reinfection with gonorrhoea in 1245 female patients attending a venereal disease clinic. After the introduction of the pessary the reinfection rate over a 16-week period was 19% compared with 40% in the control clinic patients. It was also found that women cou...

Background: The reports of SARS-CoV-2 reinfection have increased. This stimulates the need for surveillance in diverse populations to establish extent reinfections and challenges diagnosis.Methods: A retrospective descriptive survey aimed at identifying probable using established criteria proposed definitions was performed a tertiary hospital South-South, Nigeria.Results: study found two cases ...