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Assays for the Specific Growth Rate and Cell-binding Ability of Rotavirus
Published on: January 28, 2019
Development, clinical evaluation, and post-licensure impact of RotaTeq, a pentavalent rotavirus vaccine
Michelle G Goveia1, Max Ciarlet, Katey E Owen
1Merck & Co., Inc., West Point, Pennsylvania 19486, USA. michelle_goveia@merck.com
Insights
RotaTeq, a pentavalent oral rotavirus vaccine, effectively prevents severe rotavirus gastroenteritis (RVGE) in children. Postlicensure studies confirm its safety and significant impact on reducing RVGE incidence and healthcare costs globally.
Area of Science:
- Vaccinology
- Pediatric Infectious Diseases
- Gastroenterology
Background:
- Rotavirus gastroenteritis (RVGE) is a primary cause of severe diarrhea in children globally.
- Existing rotavirus vaccines have varying efficacy and coverage.
- The need for a broadly protective and safe rotavirus vaccine is critical.
Purpose of the Study:
- To provide an overview of the development, clinical evaluation, and postlicensure impact of RotaTeq™.
- To highlight the unique design and manufacturing of the pentavalent oral rotavirus vaccine.
- To assess the efficacy and safety of RotaTeq in diverse populations.
Main Methods:
- Development of five human-bovine reassortant rotavirus strains.
- Extensive clinical trials, including one of the largest vaccine trials conducted.
- Postlicensure surveillance and safety studies in large populations.
Main Results:
- RotaTeq™ contains five human-bovine reassortant rotavirus strains targeting common serotypes (G1-G4, P1A[8]).
- Clinical trials demonstrated the vaccine to be well-tolerated and highly efficacious against severe RVGE.
- Postlicensure studies in the U.S. showed no identified safety signals and a significant reduction in RVGE.
Conclusions:
- RotaTeq™ offers broad protection against the most common rotavirus serotypes.
- The vaccine has proven effective and safe in clinical trials and real-world postlicensure use.
- RotaTeq™ has substantially reduced the burden of RVGE and associated medical costs since its 2006 licensure.
Abstract:
Rotavirus gastroenteritis (RVGE) is the leading cause of severe diarrhea in children worldwide. This paper provides an overview of the development, clinical evaluation, and postlicensure impact of RotaTeq™(Rotavirus Vaccine, Live, Oral, Pentavalent, Merck & Co., Inc.). RotaTeq, an oral vaccine, is uniquely designed to contain five human-bovine reassortant rotavirus strains expressing the human serotypes G1, G2, G3, G4, and P1A[8], which represent the most common human rotavirus serotypes responsible for ∼85% of RVGE worldwide. The development required novel solutions for manufacturing, testing, and formulation for each of the reassortants. In one of the largest vaccine clinical trials conducted, the vaccine was shown to be well tolerated and highly efficacious against severe RVGE. Efficacy has also been demonstrated in lower-income countries. In large U.S. postlicensure studies, there have been no safety signals identified, and RotaTeq has had a significant impact on reducing RVGE and its associated medical costs since licensure in 2006.
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