We have an 8 month old cat who has been diagnosed with encephalitis. He first got sick after my parents came to visit and stayed with us for a few days in September. Then he was stable for a while while on doxycycline. Then he took a turn for the worse right after my parents arrived for Thanksgiving. He couldnt even stand or walk at that time. He seemed to be recovering with a round of clindamycin. My oarents visiyed for Christmas and just left today and again he hasnt taken a turn for the worse. Could they be making him sick? They are not the best with higiene (they don't wash their hands after toileting and never bathe while they are here even though they were here for 5 days). Ive never heard of this but it seems too coincidental that 3 times in a row thays when he gets sick.