All current rotavirus vaccine studies have been conducted in the context of trivalent OPV. An interesting study would be to compare
the effects of monovalent (type-1 or type-3 strains) and bivalent OPV (type-1 and type-3) versus trivalent OPV on immune response to rotavirus vaccines. In summary, our review indicates that data on the http://www.selleckchem.com/products/iox1.html differences in immunogenicity after rotavirus vaccination with and without OPV could be important to better understand the emerging data on efficacy and safety of the recommended rotavirus vaccines. Data are clear that rotavirus vaccines do not adversely affect OPV immunogenicity when they are administered simultaneously and thus should not compromise the protective efficacy of OPV or interfere with the goal of polio eradication globally. Available evidence Selleckchem Trichostatin A indicates that OPV does interfere with immune response to the first dose of rotavirus vaccine, but this interference is largely overcome after completion of the full vaccine series. Efficacy of Rotarix™ at the WHO recommended ages of 6 and 10 weeks warrants further evaluation
in Asia and Africa because the interference from OPV on take of rotavirus vaccine is likely to be greatest during the first EPI visit at 6 weeks of age, when circulating maternal antibodies are also high and are known to also interfere with vaccine take [13]. While limited evidence from middle and high income settings suggests that almost OPV does not interfere with efficacy of rotavirus vaccines, caution should be exercised in extrapolating results to the developing world. Further research to understand the full impact of OPV interference on rotavirus vaccines is necessary to the development and deployment of safe and effective rotavirus vaccines to target populations worldwide.
Conflict of interest statement: The authors declare no conflicts of interest. “
“Diarrhoeal disease continues to represent a major threat to global child health, and was recently estimated to account for 15% of all deaths among children below 5 years of age [1]. Rotavirus is the most important aetiological agent of severe gastroenteritis, and is responsible for an estimated 453,000 childhood deaths annually [2], with over 230,000 rotavirus deaths occurring in the African continent [2], [3] and [4]. Hence, rotavirus disease prevention in Africa through vaccination is a public health priority [5]. Two live, oral, attenuated rotavirus vaccines are globally licensed for the prevention of rotavirus gastroenteritis. These include a monovalent serotype G1P[8] human rotavirus vaccine RIX4414 (Rotarix, GSK Biologicals, Belgium) and a multivalent, human-bovine reassortant rotavirus vaccine (RotaTeq, Merck & Co, USA) which contains the most common human rotavirus G-types (G1–G4), and P[8], the most common human rotavirus P-type.