bivalent


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bivalent

[bī′vā·lənt]
(chemistry)
Possessing a valence of two.
References in periodicals archive ?
In 2016, all countries using countries OPV - 155 of them - simultaneously made the switch from oral polio vaccine to a bivalent vaccine.
Though the technology is still in its infancy, the researchers have successfully used it to make bivalent viruses with a half dozen different HA molecules.
The gelling process of sodium alginate (SA) is usually achieved using bivalent cations in two different ways: the diffusion method and the internal gelation method [8].
The bivalent and quadrivalent vaccine manufacturers claim cross-reactivity and benefit in suppressing other subtypes that are found in cervical cancers; the 9-valent vaccine (Gardasil 9, ACOG recommended) is now available.
Summary: Reduction of nitro compounds to the corresponding amines has been carried out efficiently with NaBH4 in the presence of bis-thiourea complexes of bivalent cobalt, nickel, copper and zinc chlorides, [MII(tu)2Cl2].
Groups vaccinated with inactivated Newcastle Disease vaccine and bivalent vaccine (containing Newcastle Disease Virus and Avian Influenza Virus) provided 90 to 100% protection following challenge with vvNDV.
From April 30, Qatar will switch to bivalent Oral Polio Vaccine (OPV) for Poliomyelitis from the existing trivalent OPV, as per the recommendations of the World Health Organisation (WHO).
LAHORE -- Punjab is all set to complete implementation of global switch from Trivalent Oral Polio Vaccine (TOPV) to Bivalent Oral Polio Vaccine (BOPV) from 25th April.
by Times News Service In 2012, the WHO reached the conclusion that polio should be completely eradicated from the world and this switch from the trivalent to bivalent vaccine was decided upon.
The bivalent vaccine will be used now to replace the trivalent Oral Polio Vaccine ( OPV).
Therefore, in April 2016, all OPV-using countries of the world are discontinuing use of type 2 Sabin vaccine by simultaneously switching from trivalent OPV (types 1, 2, and 3) to bivalent OPV (types 1 and 3) for routine and supplementary immunization.
A senior official associated with Emergency Operation Center (EOC Sindh) said the globally synchronized switch from the trivalent to bivalent oral polio vaccine (bOPV) will also be registered during next National Immunization Days (NIDs) planned from March 15 to March 18.