Peter T. Sullivan

Learn More
OBJECTIVE To test the hypothesis that measles vaccination was involved in the pathogenesis of autism spectrum disorders (ASD) as evidenced by signs of a persistent measles infection or abnormally persistent immune response shown by circulating measles virus or raised antibody titres in children with ASD who had been vaccinated against measles, mumps and(More)
The objective of this study is to investigate whether parentally-reported gastro-intestinal (GI) symptoms are increased in a population-derived sample of children with autism spectrum disorders (ASD) compared to controls. Participants included 132 children with ASD and 81 with special educational needs (SEN) but no ASD, aged 10-14 years plus 82 typically(More)
A microtiter hemagglutination technique was adapted for routine blood typing of rhesus monkeys. The main advantage of the technique is economy of scarce reagents, since they can be used at greater dilutions and in smaller quantities than in the standard tube technique. Furthermore, the technique is sensitive, accurate, and easy to perform.
OBJECTIVE To determine which nursing support behaviors new mothers rate as most helpful in assisting them to cope with labor. DESIGN A retrospective study using quantitative and qualitative approaches, including a ranking of means and a content analysis. SETTING The postpartum unit of a tertiary-care hospital in eastern Canada. PARTICIPANTS Eighty(More)
OBJECTIVE To test whether gut permeability is increased in autism spectrum disorders (ASD) by evaluating gut permeability in a population-derived cohort of children with ASD compared with age- and intelligence quotient-matched controls without ASD but with special educational needs (SEN). PATIENTS AND METHODS One hundred thirty-three children aged 10-14(More)
The aim of the study was to estimate the prevalence of hepatitis C infection among attenders of several high-volume needle exchanges in southeast Queensland, and to compare the prevalences among the needle exchanges. Clients at four needle exchanges were surveyed over a five-day period by means of a self-administered questionnaire. A high proportion of(More)