March 12 (Reuters) - Fitch:
* FITCH SAYS U.S. HEALTH INSURER MEDICAL LOSS RATIOS WILL BE ELEVATED IN 2020 FOLLOWING STRONG 2019
* FITCH SAYS IN TERMS OF EFFECT FROM NEW CORONAVIRUS, U.S. HEALTH INSURER MEDICAL LOSS RATIOS SHOULD BEGIN TO STABILIZE IN 2021
* FITCH SAYS EXPECTS EFFECT ON OVERALL OPERATING PERFORMANCE OF RATED U.S. HEALTH INSURERS TO BE MODERATELY ADVERSE AND GENERALLY LIMITED TO 2020