Hi and sorry this happened. Normally, a dead animal or bats in a pool wouldn't hurt you if there was chlorine in the pool and it was well maintained. So, you may ask the pool attendants if they are still adding the proper amount of chlorine to the pool despite it only being once a week. If you are unsure I would see a doctor to see if this is considered an exposure. It would be low risk but still any risk is not good. Chlorine usually gets diluted by a week so it may not have been potent enough to kill any virus that was in the pool.
mkh9