| This means a tetravalent vaccine must be developed, a highly complex process that requires the use of cutting-edge technologies including molecular biology and genetics. |
| Previous ACIP guidelines have recommended a meningococcal tetravalent polysaccharide vaccine for high-risk patients. |
| These new-generation vaccines are not without risk and at least one, a tetravalent rotavirus vaccine, has been discontinued due to its association with bowel intussusception. |
| The tetravalent candidate vaccine being developed by sanofi pasteur will undergo testing for efficacy in the near future. |
| A tetravalent atom, such as that of Carbon, can combine with four monovalent atoms. |
| A catalytic composition useful for decomposition and removal of malodorous components comprising a phosphate of a tetravalent metal, a hydroxide of a divalent metal, and a photocatalyst. |
