Is it worth filing a case against a major hospital chain for spreading bacteria post surgery ?

Hello all, I am not very familiar with the medical system. Post surgery we found out that there was bacteria infection and it has spread from the hospital. I am not someone who would like to strain doctors (feel they are already too worked out) however coming from a large well reputed medical facility I feel this is not right, after charging so much and not maintaining basic min required hygiene. Let me know what you all think