were examined during the "red cloud" tests, which took place from november 1966 to february 1967 in the tanana valley, alaska. other animals cats and dogs can acquire the disease from the bite of a tick or flea that has fed on an infected host, such as a rabbit or rodent. for treatment of infected cats, antibiotics are the preferred treatment, including tetracycline, chloramphenicol or streptomycin. long treatment courses may be necessary as relapses are common.