W. Va. Code § 33-16D-14

All policies issued pursuant to this article shall cover the cost of child immunization services as described in section five, article three, chapter sixteen of this code, including the cost of the vaccine, if incurred by the health care provider, and all costs of vaccine administration. These services shall be exempt from any deductible, per-visit charge and/or copayment provisions which may be in force in these policies or contracts. This section does not require that other health care services provided at the time of immunization be exempt from any deductible and/or copayment provisions.