MILAN (Reuters) - Coronavirus has halted two years of sales growth at Italian fashion group Prada , which accelerated in the second half of 2019, the company said on Wednesday.The epidemic, which is severely hitting sales across the whole luxury industry, "interrupted the growth trajectory" and will have a negative impact on this year's results, the company said."Prada is implementing a comprehensive contingency plan to mitigate such effects, relying on its flexible supply chain and lean..