- 7 lessons
- 1 quizzes
- 10 week duration
Module 6
Diagnosis, screening, and prevention
Rotavirus infection can be detected through blood as systemic infection was caused due to enrollment of rotavirus in blood stream although intestinal infection is the main symptom but the presence of viral antigen in serum confirmed that not intestine but serum is the site of initial infection. Groome et al., states that the children suffering from antigenaemia had more chances of severe rotavirus infection as compared to the healthy ones, but a very less proportion of the children with extra- intestinal presentations was found with antigenaemia [59.60]. Nonimmunological response and various other expression factors of rotavirus receptors like HBGA regulate the clearance of rotavirus infection. Rotavirus is initially considered by the Pattern Recognition Receptors in cells or enterocytes of the immune system. Even though children suffers from various type of persistent rotavirus infections, but the severity is diminished effectively. The level of whole serum present in rotavirus specific immunoglobulin
A are currently the best molecular marker of inhibition or protection from persistent rotavirus infection observed in children with SCID (severe combined immunodeficiency disease) and can lead to systemic and chronic rotavirus infection in intestine.
Prevention for Rotavirus Disease
Improvements in sanitation don’t considerably diminish the problem of rotavirus disease. The vaccination in contrast to rotavirus is the best way to intercept from infection. RV5 vaccine and RV1 vaccine are the two widely used vaccines around the world [110, 111]. The RV5 vaccine from Merck (USA) is a type of live attenuated vaccine; made up of 5 human bovine reasserted rotavirus strain (G – type strains) whereas RV1 vaccine from Glaxo Smith Kline (Belgium) is a type of live attenuated and monovalent human virus vaccine containing rotavirus strains; initially
isolated from rotavirus induced gastroenteritis. These two vaccines showed recommendable effectiveness in rotavirus prevention in highly developed countries but are less effective in developing countries due to some unknown factors. Genetic makeup of host and presence of maternal antibodies can also affect the immunogenicity
of rotavirus [125]. First most licensed vaccine of rotavirus was launched in USA and named as Rotashield being a link between intussusceptions and rotavirus infection. Moreover, a number of vaccines are in developing stage and RV1 and RV5 vaccines are the mostly used vaccines across the world. Rotavirus can also lead to asymptomatic infections with specific rotavirus strain associated with protection in contrast to disease infection