The 2 2 model of perfectionism examines the relation between four subtypes of perfectionism and psychological adjustment (Gaudreau & Thompson, 2010). Researchers have investigated subtypes of perfectionism using common multivariate statistical analyses. The development of a new measure is warranted to evaluate whether individuals can, with a decent degree of certainty, assess by themselves thei...

BACKGROUND Influenza infection does not always cause clinical illnesses, so serological surveillance has been used to determine the true burden of influenza outbreaks. This study investigates the accuracy of measuring cumulative incidence of influenza infection using different serological survey designs. METHODS We used a simple transmission model to simulate a typical influenza epidemic and ...

Two specific and sensitive, indirect enzyme-linked immunosorbent assays (ELISAs) utilizing a protein G-peroxidase conjugate were developed to detect antibodies to the pseudorabies virus (PRV) and the transmissible gastroenteritis virus (TGEV) in pig sera. Sera from 5,337 pigs, obtained from various abattoirs in South Africa, were tested with both ELISAs. No serological evidence of infection wit...