Allergic examination using PPD-tuberculins is the main method of life-time tuberculosis diagnostics in farm animals and poultry. However, it known about a decrease diagnostic value allergic reactions after irradiation animals, occurrence non-specific, pseudo-allergic reactions. One reasons for manifestation non-specific may be autosensitisation (autoallergisation) body by breakdown products per...

OBJECTIVE Evaluating the frequency of mycobacterium infection in an HIV-positive population and its influence on medium-term survival, along with clinical and epidemiological factors associated with co-infection. METHODS Several clinical specimens were studied for mycobacteria in a sample of 92 HIV+ patients at the San Juan de Dios teaching-hospital in Bogota, Colombia, during 1996. Factors a...

Infection with atypical mycobacteria (MAC) is a well-known complication of AIDS that typically occurs only in people with advanced immunodeficiency. We studied tissues from 13 patients with HIV and atypical mycobacterial infection who died in St Petersburg Russia from 2009-2012. Three patterns of disease were identified that suggest effects of host resistance. The first pattern was in people pa...

It is known that the cultural characteristics of strains of Mycobacterium tuberculosis isolated from tuberculous secretions may be changed under the influence of anti-tuberculosis drugs. It has been suggested that this is due to " biological disintegration" of the bacteria (Lanyi and Eidus, 1954). The process is usually a gradual one. The present report is concerned with the isolation from lary...

In previous studies’-3 it was observed that the thioglycollate, peroxidase, neutral red, and serpentine cord tests were useful for group differentiation of M. tuberculosis, atypical acid-fast bacilli, and saprophytic mycobacteria. The present investigation was undertaken to determine further the differential potential of these procedures, and to ascertain whether the niacin test4’5 could also b...