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At least 109 records · Page 6Linked to original sources
PubMed1991

Analysis of a pregnancy-screening and neonatal-immunization program for hepatitis B in Hamilton, Ontario, Canada, 1977-1988.

During the 12 years from January, 1977, to December, 1988, the Hamilton Centre of the Canadian Red Cross Society (CRCS) Blood Transfusion Service screened 98,712 pregnant patients for hepatitis B surface antigen (HBsAg) and identified 120 positives (0.12%). The number of positives ranged from six to 16 per year. We were able to trace and enroll 65 mothers (54%) and 96 of their children in the follow-up study. The majority of the women were between 20 and 30 years of age (95.4%) and married (86%), and about one-half were employed outside the home. Sixty-five percent were white and 34% Asian, and 20 countries were listed as their places of origin. Hepatitis B immune globulin (HBIG) was available for neonatal immunization since 1977 and combined with vaccine since 1982. Of the 96 candidates for HBIG, 60 (63%) received HBIG within 24 hr, one after 3 months, four unknown, and 31 did not receive it. Of the 56 candidates for vaccination from 1982 to 1989, 26 (46%) received three doses, seven had two doses, eight had one dose, one was unknown, and 14 had none. HBsAg tests were performed on 69 children (71.8%) and anti-HBs on 61 (63.5%). Four of the children are HBsAg positive, 31 have anti-HBs, and 31 have no detectable antibodies. All four HBsAg positives had not received vaccine, and only one had received HBIG. Of the children positive for hepatitis B surface antibodies, five had received no immunization and therefore had been subclinically infected.(ABSTRACT TRUNCATED AT 250 WORDS)

Adult↗
PubMed1976

Unresolved issues in the first five years of the rubella immunization program.

Despite extensive use of atttenuated rubella vaccine during the past five years, the degree of fetal risk in susceptible women inoculated early in pregnancy is still an unresolved issue. Although there is considerable evidence of chronic vaccine virus infection of the products of gestation in aborted fetuses, congenital defects have not yet been reported in the newborn infants of susceptible vaccinated pregnant women. The normal findings in the newborn infant can be misleading with respect to the safety of the vaccines in early pregnancy, because they represent only a small selected group of reported cases. The immediate need is for more complete reporting of all relevant cases wherever they occur in order to determine without many more years of delay whether the fetal risk has public health significance or is so low as to be of negligible importance.

Adolescent↗
PubMed1980

Fatal Guillain-Barré syndrome after the national influenza immunization program.

Fifty-eight fatal cases of Guillain-Barré syndrome (GBS) were reported during the 1976 to 1977 National Influenza Program: Thirty-two (58%) of these patients had received the A/New Jersey influenza vaccine. The mean interval from vaccination to onset was 3.9 weeks, and the incidence of preceding illness in vaccinated or unvaccinated patients was similar. Fifty-eight percent had at least one chronic disease before onset. The clinical features were similar in vaccinated and unvaccinated patients. Most deaths followed medical complications of respiratory paralysis: Fifteen had pneumonia, 29 (83%) died suddenly, 15 had sudden arrhythmias or hypotension, and 7 had myocardial infarction or pulmonary embolus.

Adolescent↗
PubMed1983

Risk of pregnancy among adolescent schoolgirls participating in a measles mass immunization program.

A large measles vaccination program in the Albuquerque, New Mexico public schools in 1981, conducted according to US Public Health Service guidelines, was studied to determine rates of pregnancy among adolescent vaccinees. Pre-vaccination counseling of 1,922 clinic attendees prevented seven pregnant girls from being vaccinated. Despite counseling, of 1,913 female vaccinees age 13-18 years old, two were pregnant at the time of vaccination (1.05 pregnancies per 1,000 vaccinees) and an additional four girls became pregnant in the three months after vaccination (2.1 pregnancies per 1,000 vaccinees). Data supporting low or absent fetal risks from measles and rubella vaccine, combined with the low pregnancy rate among vaccinees documented in this study, support the reasonableness of the recommended strategy for measles and rubella vaccination of secondary schoolgirls.

Adolescent↗