Miscellaneous Laboratory Tests ------------------------------ Samples for certain special tests must be submitted to other laboratories for analyses. Diagnosis of lead poisoning (a common intoxication of caged birds) requires a specific analysis of the patient's blood. Diagnosis of chlamydiosis (parrot fever) requires submission of feces (or cloacal swabs) or tissue samples to the State laboratory for very specific testing procedures. Blood samples can be submitted to other laboratories for serologic analyses (detection of antibodies to certain disease agents, such as chlamydiosis). Viral diseases are difficult to diagnose in caged birds. Virus isolation and identification require submission of specific tissues or body fluids, secretions or excretions, and must be performed by State laboratories, or laboratories located within veterinary colleges. These tests are time-consuming and costly.