MEXICO CITY–(BUSINESS WIRE)– #insurance–AM Best has revised the outlooks to negative from stable and affirmed the Financial Strength Rating of A- (Excellent) and the Long-Term Issuer Credit Rating of “a-” (Excellent) of Seguros Suramericana S.A. (Sura) (Panama). The Credit Ratings (ratings) reflect Sura’s balance sheet strength, which AM Best assesses as strongest, as well as its adequate operating performance, neutral business profile and appropriate enterprise risk management. The revision of the outlo