Variation among strains ofCorynebacterium diphtheriaeduring an outbreak in a restricted environment

Characterization of Clostridium chauvoei strains isolated from an outbreak of blackleg in Iran

Antigenic Variation Among Adenovirus Type 12 Strains.

Recent reports relative to the oncogenicity of adenovirus types 12 and 18 (Trentin, Yabe, and Taylor, Science 137:835, 1962; Huebner, Rowe, and Lane, Proc. Natl. Acad. Sci. U.S. 48:2051, 1962) have caused a renewed surge of interest in the adenovirus group. In addition to the prototype strain Huie, Huebner and co-workers investigated eight adenovirus type 12 strains, recovered from anal swabs o...

An outbreak of acute swine erysipelase in a herd

Phenotypic variation in sensorimotor performance among eleven inbred rat strains.

As a first step toward identifying the genes that determine sensorimotor ability (motor coordination) we subjected 11 inbred strains of rats to three different tests for this trait. Rats were tested at 13 wk of age to determine how long they could remain on 1) a rotating cylinder as the velocity of rotation increased every 5 s (1-direction rotation test), 2) a rotating cylinder that reversed di...

Latitudinal variation in eclosion rhythm among strains of Drosophila ananassae.

Eclosion rhythm parameters of D. ananassae strains originating between 8 degrees-34 degrees N were highly variable and latitude dependent. In the field under naturally fluctuating light intensity, temperature and R.H., the amplitude of the rhythm was high and the eclosion gate was narrow; however, under the naturally fluctuating light intensity but at constant temperature and R.H., the amplitud...