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Silicosis and tuberculosis: a proposed radiographic classification of tuberculosis to accompany the ILO international classification of radiographs of pneumoconioses.

A significant proportion of workers exposed to silica dust are at risk of developing tuberculosis (TB). The higher the International Labor Organization (ILO) category of silicosis, the greater the TB risk. Subtle radiographic presentations of TB may be the initial manifestation of TB, particularly in the absence of sputum identification of TB bacilli. A proposed TB x-ray-reading form in addition to the ILO categorization of silicosis is offered. The implementation of a standardized TB x-ray-reading approach should alert the clinician to indolent TB lesions.

Disease Notification↗
PubMed1990

Relation of serological- and CPE- classification of porcine enteroviruses to the classification by immunoperoxidase (IP) staining, and observation of CPE by IP staining method.

Characteristics of CPE produced by porcine enteroviruses (PEV) were examined by Immunoperoxidase (IP) staining method. Viral antigens were detected earlier than appearance of CPE. Distinctive characteristics of the three CPE types were clearly showed by the method. In cross reactions by IP staining, the titers of the staining were high (1:6,400 to 1:25,600), even though neutralizing titers of PEV with CPE II or III were low (1:200 to 1:400). The very close relationship was detected between PEV with the same CPE type, but the very low relationships were detected between PEV with the different CPE type. The relationships in CPE I group were various. The results by IP staining were more relative to CPE type than the serotype. Thus, IP staining is one method to classify PEV clearly.

Animals↗