The countries that have cVDPV outbreaks (as shown on the previous screen) are still using OPV to vaccinate their populations. |
Why is OPV still being used in these countries?
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A. | OPV is much less expensive to administer. |
B. | OPV prevents intestinal infection with PV; IPV does not. |
C. | OPV has fewer immediate vaccine reactions. |
D. | OPV can spread to individuals who were missed in the vaccination program and thereby immunize them also. |
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