Objectives: We report the results of the 2007 national serological survey of immunity to
diphtheria in Australia to assess the impact of recent schedule changes on diphtheria …

In this sero-epidemiological study, we investigated humoral immunity to three vaccine-
preventable diseases—tetanus, diphtheria and pertussis—among 331 adults (aged 18–60 …

Background The administration of tetanus-diphtheria vaccine (Td," adult" type) as booster
dose every ten years, instead of tetanus toxoid, is a usual practice in the US, and its is being …

Rise of diphtheria cases in adults is a cause of concern worldwide. Pertussis is also now
affecting adults. We assessed serum levels of tetanus, diphtheria and pertussis antibodies in …

Patients with chronic diseases are at increased risk of complications following infection. It
remains, however, unknown to what extend they are protected against vaccine-preventable …

In response to concerns about diphtheria vaccine efficacy, a case-control study was
undertaken in Ukraine in 1996 to determine whether those recently immunized were indeed …

The diphtheria immunity status was determined with the passive haemagglutination
technique in 503 sera of 10–90-year-old persons from Warsaw and Olsztyn Provinces …

Results In the vaccination documents we only found 19 old individuals vaccinated against
tetanus-diphtheria. 47.1% had no protective titres. Geometric mean titres were 0.12 UI/ml …

Background Diphtheria is a re-emerging infectious disease and public health concern
worldwide and in Vietnam with increasing cases in recent years. This study aimed to assess …

Objective To determine the seroprevalence of antibodies against of diphtheria, tetanus, and
pertussis among Thai adolescents. Methods A cross-sectional study was conducted among …