First Quarter 2000 Operating Loss of $609,000 Shows a 74.7%Improvement Over Prior Year Operating Loss of $2,405,000First Quarter 2000 Sales Increased By 23% Over Prior YearFirst Quarter 2000 Gross Profit Increased By 49.3% Over Prior Year Marisa Christina, Incorporated (Nasdaq: MRSA) today reported results for the first quarter ended March 31, 2000.