The pathogenic potential of Salmonella is determined during the complex interaction between pathogen and host, requiring optimal regulation of multiple bacterial genetic systems within variable in vivo environments. The mouse model of systemic disease has been an extremely productive model to...

Most of the research institutes supported by the Council publish their own annual reports This report is confined to notes on a selection of recent developments and to more general accounts of the research in progress at the eight institutes that received Visiting Groups during the year (these...

In the Kenya Settled Areas where there are now about 884, 000 cattle, average mortality amongst calves in the first 6 months of life is about 25%. The main causes are white scour (colibacillosis), pneumonia, anaplasmosis, a non-specific glomerulo-nephritis and, most important, calf paratyphoid due...

Mycoplasma sp. was recovered from a herd of cows with high incidence of MASTITIS which did not respond to penicillin. In another herd, a slow growing organism similar to Streptococcus thermophilus was recovered. A survey was begun to deter-mine the point of entry of Salmonella spp. into meat meal....

II. A pasteurella was isolated from the milk of cows in one herd for over 12 months. Affected cows showed acute MASTITIS with ropy milk and there were severe systemic effects. Lancefield Group 0 streptococci were recovered from a herd in which 20 of 25 cows showed systemic effects and painful...

This is an annual report covering the period 1st July, 1954, to 1st June, 1955. anthrax is sporadic; annual vaccination is carried out: blackleg causes more losses but could be controlled if farmers availed themselves of the vaccine in good time. lamb dysentery, enterotoxaemia and malignant oedema...

L. discussed changes in the feeding habits of human beings from the days when food was obtained by gathering and hunting and emphasized the great changes which have taken place during the last 40 years, with mass use of communal feeding in restaurants and canteens, largely as a result of the...

Studies on MASTITIS were limited to testing antibiotics against staphylococcal infections. Neither intensified aureomycin treatment, pro-caine penicillin plus 5-amino acridine, furacin, terramycin nor neomycin was satisfactory.
Methods of control practised against CASEOUS LYMPHADENITIS in sheep,...

Abnormally dry conditions caused disappearance of the BUFFALO FLY (Siphona exigua[Haematobia irritans exigua]) from extensive regions. The farthest southern extension of the fly was to Maryborough on the coast and Dalby inland, but it has apparently disappeared from the region south of an east-west ...