MEXICO CITY–(BUSINESS WIRE)– #insurance–AM Best has upgraded the Long-Term Issuer Credit Rating to “bbb+” (Good) from “bbb” (Good), the Mexico National Scale Rating (NSR) to “aa+.MX” (Superior) from “aa.MX” (Superior), and affirmed the Financial Strength Rating of B++ (Good) of Auna Seguros, S.A. (Auna Seguros) (Mexico). The outlook of these Credit Ratings (ratings) is stable.The rating upgrades of the Long-Term ICR and NSR reflect Auna Seguros’ balance sheet strength, which AM Best assesses as very stron