Immunity and field efficacy of type 2-containing polio vaccines after cessation of trivalent oral polio vaccine: A population-based serological study in Pakistan
Background: In Pakistan and other countries using oral polio vaccine (OPV), immunity to type 2 poliovirus is now maintained by a single dose of inactivated polio vaccine (IPV) in routine immunization, supplemented in outbreak settings by monovalent OPV type 2 (mOPV2) and IPV. While well-studied in c...
Main Authors: | , , , , , , , , , |
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Format: | Article |
Language: | English |
Published: |
Elsevier
2020-08-01
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Series: | Vaccine: X |
Online Access: | http://www.sciencedirect.com/science/article/pii/S2590136220300140 |