Isolation, identification and characterization of chicken anaemia virus in Malaysia.

A study was conducted to isolate and identify chicken anaemia virus (CAV) from field samples of clinically infected broiler chickens in Malaysia. A total of 125 samples were collected from chickens aged 2-6 weeks with clinically depressed and retarded growth, of which five samples were found positive to CAV directly by polymerase chain reaction (PCR). Later, five isolates of CAV from the respective five PCR positive samples were isolated in MDCC-MSB1 cells at passage 4 based on cytopathic effects, PCR and indirect immunofluorescent antibody test.

Variations in 7Be concentrations in the atmosphere of Kuwait during the period 1994 to 1998.

The Beryllium-7 (7Be) concentrations in the atmosphere of Kuwait, as found by gamma-ray measurements for 243 air filters collected over a five-year period, produced variable values ranging from 0.2 to 14.9 mBq/m3 with a behavior pattern which has oscillatory characteristics, with increased activities occurring in the summer months of each year.