Abstract
Double immunodiffusion (DID) is a useful, inexpensive antibody screening test that is more specific than complement fixation for blastomycosis. Seven of 10 patients with proved blastomycosis had positive results on DID assays for antibody to the A antigen of Blastomyces dermatitidis. Sputum cytologic examination and skin or other tissue biopsies may be diagnostic if the organism is demonstrated. Culture remains the sina qua non of diagnosis, and a negative DID test result for A precipitin does not rule out this infection. Follow-up serologic studies of patients in remission and in relapse should be undertaken to determine the evolution of the immune response to the A antigen.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
