Augmented adherence and internalization of group A Streptococcus pyogenes to influenza A virus infected MDCK cells.

Respiratory tract infections are one of the leading causes of morbidity and mortality. There is considerable epidemiologic evidence that infection with respiratory viruses increases the incidence and severity of secondary bacterial complications. However, very limited number of studies were concerned with the mechanism behind such synergy.

High prevalence of occult hepatitis B in hepatitis C-infected Egyptian children with haematological disorders and malignancies.

Objective: This study investigates the prevalence of occult hepatitis B virus (HBV) in children and adolescents with haematological diseases with or without hepatitis C virus (HCV) infection.

Methods: Forty-nine children with haematological disorders (median age 11.4 years) and 51 with haematological malignancies (median age 8 years) were enrolled.