A WEB-SURFER'S GUIDE TO BACTERIA ASSOCIATED WITH INFECTIONS IN HUMANS
Parachlamydia acanthamoebae has been associated with hypersensitivity pneumonitis (humidifier fever)
Reference - Everett, K.D.E., Bush, R.M., Andersen, A.A. (1999). Emended description of the order Chlamydiales, proposal of Parachlamydiaceae fam. nov. and Simkaniaceae fam. nov., each containing one monotypic genus, revised taxonomy of the family Chlamydiaceae, including a new genus and five new species, and standards for the identification of organisms. Int. J. syst. Bact. 49, 415-440.
