Panera Bread and Chipotle Mexican Grill passed with flying colors, but KFC and Olive Garden were among the laggards in commitments to eliminate medically important antibiotics from meat and poultry supply chains, according to a new report.

Strong progress nonetheless was made across the top 25 fast-food and casual dining retailers, suggesting that public pressure has helped slow the meat and poultry industry’s routine use of antibiotics that are critical to human health, according to the report released Tuesday by five consumer, environmental and public health groups.

Subway, which last year received an F rating in the report’s inaugural edition, rose to a B for its commitment announced earlier this year to eliminate antibiotics across its entire menu. McDonald’s rose a half grade, to C-plus in the wake of its decision earlier this year to eliminate antibiotics from its chicken supply.