We are adopting a new (rescue) cat next weekend. The rescue that we are getting him from recommends a 7-10 day isolation period before we introduce him to our current cats to make sure that he isn't ill and doesn't transmit any illnesses to our other cats.
What illnesses and/or illness symptoms should I be on the lookout for?
Part of the recommended integration period also recommends taking bedding that smells like him and putting it where our other cats can smell it and vice versa (so they can smell each other before meeting). Should I wait to do this until after the isolation period, or a certain number of days through the isolation period to make sure that he doesn't have a skin disease?
Finally (out of curiosity), I have medical records on our new cat for the past month (his second worming is tomorrow, he's had FeL/FIV testing, etc). If this was a stray cat off the street, would the isolation period be longer/different?