Clinda is used for toxo and maybe neospora. I do not believe it will treat any of the rickettsial diseases such as ehrlichia or anaplasma.
That seems like an awfully long time for titers for Toxo and Neo. Last person I know that ran them through the lab I use had the toxo come back in a day. Don't know if she ran the neo. I just sent in bloodwork for the same things, as well as others, and I expect to have them back much sooner than 2 weeks.