agar and Farmer-s-Lung

agar has been researched along with Farmer-s-Lung* in 2 studies

Other Studies

2 other study(ies) available for agar and Farmer-s-Lung

Article	Year
Serological investigations of a bovine respiratory disease ("urner pneumonie") resembling farmer's lung. Infection and immunity, 1972, Volume: 6, Issue:1 The immunological response of cattle exposed to moldy hay was examined by agar gel diffusion with standard farmer's lung hay antigens. A high incidence of precipitins against Micropolyspora faeni (60%) and moldy hay antigen (80%) was detected in exposed but apparently healthy cattle from a region with a high incidence of bovine farmer's lung. In comparison, in the plains, a low incidence area, we found only 1 animal of 164 harboring precipitins against M. faeni. We further observed that many animals from exposed populations lost their precipitins during pasturing and regained them during winter housing. Thirty-nine clinical cases of bovine farmer's lung ("Urner Pneumonie") were investigated serologically. Only 49% of these animals showed precipitins against M. faeni and 54% showed precipitins against moldy hay antigen. We discuss in this paper the probable causes of this apparent lack of immunological response. Topics: Agar; Animals; Antigens, Fungal; Aspergillus; Cattle; Cattle Diseases; Farmer's Lung; Fungi; Immunodiffusion; Immunoelectrophoresis; Micromonospora; Precipitins; Respiratory Hypersensitivity; Respiratory Tract Infections; Seasons; Serologic Tests	1972
Rapid and sensitive precipitin test for the diagnosis of farmer's lung using immunoosmophoresis. Journal of clinical pathology, 1968, Volume: 21, Issue:3 An agar gel precipitin test, using osmophoresis, has been devised for use with weakly reacting sera. The test was applied to various categories of sera, including sera from cases of farmer's lung which had reacted with a conventional immuno-diffusion test, and others which had not. All the conventionally sero-positive sera reacted positively in the new test as did nine of 16 cases in the sero-negative group. Concentration of sera in the latter group resulted in 11 positive tests out of a possible 12. Evidence was obtained of qualitative differences in the sera of these two groups. Unexpected reactivity with sera from cases of farmer's lung was found in a dialysate from a broth culture of T. polyspora. No reactions with this dialysate were obtained with the sera of any patients who did not have symptoms of farmer's lung. Topics: Agar; Antigens; Bacteria; Farmer's Lung; Humans; Immunodiffusion; Methods; Osmosis	1968

Article

Year

Serological investigations of a bovine respiratory disease ("urner pneumonie") resembling farmer's lung.

Infection and immunity, 1972, Volume: 6, Issue:1

The immunological response of cattle exposed to moldy hay was examined by agar gel diffusion with standard farmer's lung hay antigens. A high incidence of precipitins against Micropolyspora faeni (60%) and moldy hay antigen (80%) was detected in exposed but apparently healthy cattle from a region with a high incidence of bovine farmer's lung. In comparison, in the plains, a low incidence area, we found only 1 animal of 164 harboring precipitins against M. faeni. We further observed that many animals from exposed populations lost their precipitins during pasturing and regained them during winter housing. Thirty-nine clinical cases of bovine farmer's lung ("Urner Pneumonie") were investigated serologically. Only 49% of these animals showed precipitins against M. faeni and 54% showed precipitins against moldy hay antigen. We discuss in this paper the probable causes of this apparent lack of immunological response.

Topics: Agar; Animals; Antigens, Fungal; Aspergillus; Cattle; Cattle Diseases; Farmer's Lung; Fungi; Immunodiffusion; Immunoelectrophoresis; Micromonospora; Precipitins; Respiratory Hypersensitivity; Respiratory Tract Infections; Seasons; Serologic Tests

1972

Rapid and sensitive precipitin test for the diagnosis of farmer's lung using immunoosmophoresis.

Journal of clinical pathology, 1968, Volume: 21, Issue:3

An agar gel precipitin test, using osmophoresis, has been devised for use with weakly reacting sera. The test was applied to various categories of sera, including sera from cases of farmer's lung which had reacted with a conventional immuno-diffusion test, and others which had not. All the conventionally sero-positive sera reacted positively in the new test as did nine of 16 cases in the sero-negative group. Concentration of sera in the latter group resulted in 11 positive tests out of a possible 12. Evidence was obtained of qualitative differences in the sera of these two groups. Unexpected reactivity with sera from cases of farmer's lung was found in a dialysate from a broth culture of T. polyspora. No reactions with this dialysate were obtained with the sera of any patients who did not have symptoms of farmer's lung.

Topics: Agar; Antigens; Bacteria; Farmer's Lung; Humans; Immunodiffusion; Methods; Osmosis

1968