Lymphadenitis of cattle due to infection with green algae.

Lymph nodes that were diffusely or focally green in colour were detected in cattle at slaughter in northern Australia on eight occasions over the past eight years. These lesions were caused by infection with green algae of the order Chlorococcales but specific identification of the four strains isolated was not possible in the light of present knowledge. The infection was restricted to retropharyngeal and mandibular lymph nodes in all but one instance, when a mediastinal node was also involved. The infection evoked a largely proliferative inflammatory response. Non-progressive or slowly progressive infections were established in the peritoneal cavity of rats inoculated i/p with cultures of the organism. The presence of numerous strongly periodic acid-Schiff and Gomori methenamine silver positive granules, well developed chloroplasts and the green colour of the organisms, both of individuals and colonies, serve to differentiate it from the morphologically similar Prototheca species which are probably achloric algae

Cellular enzyme values in hunter/jumper and dressage horses with dermatophytosis Valores de enzimas celulares em cavalos de caça e de esportes com ou sem dermatofitose

WOS: 000272183000031

Microsporum nanum. quarto relato de infecção humana no Brasil Report of the fourth human infection case by Microsporum nanum in Brazil

Comunica-se o quarto relato de infecção humana por Microsporum nanum (M. nanun) no Brasil. Trata-se de criança de 9 meses de idade, apresentando há um mês lesões cutâneas dorsais compatíveis com tinea corporis. As lesões foram frustas, regredindo espontaneamente após um mês. A investigação epidemiológica na área de origem do caso índice identificou suínos infectados por Microsporum nanum, sugerindo ser esta a fonte de infecção.<br>The authors present the fourth Brazilian case of human Microsporum nanum (M. nanum) infection. A child of nine months old presents cutaneous dorsal lesions compatible with tinea corporis, which appeared one month before. The culture revealed M. nanum. The lesions resolved spontaneously after a month. Epidemiologic investigation in the patient's place of origin identified swine infected by M. nanum, indicating the probable source of the infection