Some strains of serotype 4 fowl adenoviruses cause inclusion body hepatitis and hydropericardium syndrome in chickens.

Fowl adenoviruses were isolated and characterized from severe cases of hydropericardium syndrome in Ecuador and Pakistan. All were neutralized by antibodies against serotypes 4 and 11. Cross-neutralization tests and restriction enzyme analysis strengthen the classification as serotype 4 strains.

Topological properties of the peptide bond in glycyl-L-threonine dihydrate based on a fast synchrotron/CCD-diffraction experiment at 100 K.

The charge density of glycyl-L-threonine dihydrate is extracted from a synchrotron data set of 98405 reflections collected at 100 K with a Bruker CCD area detector up to a resolution of d=0.38 A (sintheta/lambda = 1.32 A 1).