OLDWICK, N.J.–(BUSINESS WIRE)–AM Best has placed under review with positive implications the Financial Strength Rating of B+ (Good) and the Long-Term Issuer Credit Rating (Long-Term ICR) of “bbb-” of QCA Health Plan, Inc. (QCA) (Little Rock, AR). The Credit Rating (rating) action follows the announcement that QCA has entered into a definitive agreement to be acquired by Centene Corporation (Centene), subject to regulatory approval. The transaction is expected to close in early 2019. The under