The aim of the study was to evaluate effectiveness PCR-RТ method using PCR-RТ-IS test system for etiological diagnosis whooping cough in examination patients with infectious respiratory pathology prolonged and contact persons. 113 children aged from 1 month 17 years, 11 months 29 days, 146 family members were examined. Regardless initial diagnosis, all examined by bacteriological, molecular gen...

The Beaudette strain of avian infectious bronchitis virus propagated in chicken embryo kidney cells is stabilized by exposure to 1 M MgSO(4) at 50 C for 80 min, at pH values ranging from 4 to 10.