The effect of age on the clinical presentation of pertussis was assessed in 664 adolescent
and adult cases. Complications were more frequent in adults than in adolescents (28% vs. 16…

Raft tectonics (tectonique en radeaux) allows the exterme thin-skinned extension of overburden
over a décollement of thin salt or other evaporites. Rafts are allochthonous fault blocks …

The long-term efficacy of hepatitis B vaccine, long-term effectiveness of hepatitis B immunisation
programmes, immune memory induced by hepatitis B vaccine, current booster policies, …

Background The Pap test has been used for cervical cancer screening for more than four
decades. A human papillomavirus (HPV) vaccine has been approved for use in Canada and is …

Background. Beginning in 1990 Canada experienced a resurgence of pertussis. Changes
in incidence and hospitalization according to age in the province of Quebec between 1983 …

… †Bernard Duval MPH MD Public Health Physician Consultant Chief Department, Quebec
National Public Health Institute, … Sadly, Bernard Duval died while this paper was in preparation. …

We assessed Canadian obstetrician/gynaecologists’, family physicians’ and paediatricians’
knowledge, attitudes, and beliefs about HPV infection and prevention, as well as factors …

Cost-effectiveness/cost-utility studies of hepatitis A vaccine were identified via a series of
literature searches (MEDLINE, EMBASE, HSTAR and SSCI). Citations and full-text articles were …

The levels of antibody against measles, mumps, and rubella were determined at 5–6 years
postimmunization in 468 children vaccinated with two different trivalent vaccines. The …

This study was undertaken to evaluate the prevalence of antibodies against Francisella
tularensis, Coxiella burnetii, and certain serovars of Leptospira interrogans among trappers in …