OLDWICK, N.J.–(BUSINESS WIRE)–A.M. Best has affirmed the Financial Strength Rating of A (Excellent) and the Long-Term Issuer Credit Rating of “a+” of Blue Whale Re Ltd. (Blue Whale) (Burlington, VT). The outlook of these Credit Ratings (ratings) is stable. The ratings reflect Blue Whale`s strong risk-adjusted capitalization and conservative operating strategy. The ratings also consider the company`s critical and central role, and favorable profile as part of the Pfizer Group, as well as the e