A skin test that detects dermal hypersensitivity in persons with past infection with Coccidioides species is again available for clinical use. Nearly all of the clinical studies with similar materials were published prior to the 1990s, and as a result, many practicing physicians will be unfamiliar with how skin testing for coccidioidomycosis might be useful in patient management or as a research tool. We review clinical and epidemiological studies with past skin test antigens, the composition of past and current skin test preparations with particular attention to differences in the preservatives, and how the current preparation could be used today.

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Inhibitors of tumor necrosis factor-α (TNFIs) have revolutionized the treatment for patients with a variety of inflammatory illnesses, including rheumatoid arthritis, psoriasis and psoriatic arthritis, ankylosing spondylitis, and other inflammatory diseases, and have improved the outcomes and quality of life for such patients. Endemic fungal infections, such as coccidioidomycosis, are observed to occur in persons who are treated with these agents and who live in the Coccidioides-endemic area with similar frequency as persons in the general, healthy public but with an increased likelihood of symptomatic infection and extrapulmonary dissemination. Because the control of coccidioidal infections requires the formation and maintenance of granuloma, it is not unexpected that TNFIs, which inhibit granuloma formation, seem to increase the risk of clinical disease. No guidelines exist to address the prevention and management of disease in patients whose treatment course with TNFIs is complicated by subclinical or clinical coccidioidal infection. Therefore, we reviewed the available medical literature and offer suggestions to the approach and treatment of patients with various forms of coccidioidomycosis before and during therapy with TNFIs.

Further research is necessary to determine the optimal approach to TNFI recipients with coccidioidomycosis.

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