Science Library Category:

SIDS

Published: 2011
SYNOPSIS

Using the Tukey-Kramer test, statistically significant differences in mean IMRs (infant mortality rates) were found between nations giving 12-14 vaccine doses and those giving 21-23, and 24-26 doses.”

TITLE

Infant mortality rates regressed against number of vaccine doses routinely given: is there a biochemical or synergistic toxicity?

CITATION

Neil Z Miller and Gary S Goldman; Human and Experimental Toxicology. 2011 Sep; 30(9): 1420–1428. doi: 10.1177/0960327111407644.

SUMMARY

The infant mortality rate (IMR) is one of the most important indicators of the socio-economic well-being and public health conditions of a country. The US childhood immunization schedule specifies 26 vaccine doses for infants aged less than 1 year—the most in the world—yet 33 nations have lower IMRs. Using linear regression, the immunization schedules of these 34 nations were examined and a correlation was found between IMRs and the number of vaccine doses routinely given to infants.

View Abstract

TAGS
Published: 2007
SYNOPSIS

Neonatal deaths following hepatitis B vaccination should be investigated as possible vaccine-related deaths.

TITLE

An investigation of infant deaths following initial hepatitis B vaccination based on the Vaccine Adverse Event Reporting System (VAERS), 1992-2002

CITATION

Soldatenkova VA, Yazbak FE. Medical Veritas. 2007;4:1414-1421.

SUMMARY

This study argues that all unexpected neonatal deaths occurring after initial hepatitis B vaccination should be systematically investigated. Over one-fifth (22%) of neonatal hepatitis B vaccine injuries reported to the U.S. Vaccine Adverse Event Reporting System (VAERS) from 1992 to 2002 were deaths (38/170) that, in nearly all cases, occurred within hours or days of vaccination. Although most of the deaths were officially classified as sudden infant death syndrome (SIDS) or “unexplained” rather than as vaccine-related deaths, the authors note “a statistically significant increase in [the] proportion of neonatal SIDS since implementation of universal vaccination of newborns against hepatitis B.” The VAERS reports also are suggestive of higher risks for premature, small, or slightly ill infants.

View Abstract

TAGS
Published: 2005
SYNOPSIS

Among girls, those who received both BCG and DTP experienced higher mortality than those who received only one of the two vaccines (hazards ratio 2.4; 95% confidence interval 1.2-5.0).

TITLE

Evaluation of non-specific effects of infant immunization on early infant mortality in southern Indian population.

CITATION

Moulton LH, Rahmathullah L, Halsey NA, Thulasiraj RD, Katz J, Tielsch JM. Tropical Medicine and International Health, 2005 Oct;10(10):947-55.

SUMMARY

In a study of children under 2 years of age in Guinea-Bissau, Kristensen et al. (2000) found immunization with Bacille Calmette Guerin (BCG) vaccine to be associated with lower mortality, but stated that oral polio vaccine (OPV) and diphtheria, tetanus, polio (DTP) vaccines were associated with higher mortality. More recently, it has been suggested that this effect may be gender-specific, existing primarily among girls. This evaluation, focused on relating timing of BCG and DTP vaccine receipt to mortality from 1 week to 6 months of age, with emphasis on gender differentials found that girls that received both BCG and DTP experienced higher mortality than those who received only one of the two vaccines.

View Abstract

TAGS

, , , ,

Published: 2004
SYNOPSIS

The MR (mortality rate) was 1.81 (95% Cl: 0.95, 3.45) for the first dose of DTP and 4.36 (95% Cl: 1.28, 14.9) for the second and third dose

TITLE

The introduction of diphtheria-tetanus-pertussis vaccine and child mortality in rural Guinea­Bissau: an observational study.

CITATION

Aaby P, Jensen H, Gomes J, Fernandes M, Lisse IM. International Journal of Epidemiology. 2004 Apr;33(2):374-80.

SUMMARY

Prior to the introduction of vaccines, children who were absent at a village examination had the same mortality as children who were present. During 1984-1987, children receiving DTP at 2-8 months of age had higher mortality over the next 6 months, the mortality rate ratio (MR) being 1.92 (95% CI: 1.04, 3.52) compared with DTP-unvaccinated children, adjusting for age, sex, season, period, BCG, and region. The MR was 1.81 (95% CI: 0.95, 3.45) for the first dose of DTP and 4.36 (95% CI: 1.28, 14.9) for the second and third dose. BCG was associated with slightly lower mortality (MR = 0.63, 95% CI: 0.30, 1.33), the MR for DTP and BCG being significantly inversed. Researchers found in low-income countries with high mortality, DTP as the last vaccine received may be associated with slightly increased mortality. Since the pattern was inversed for BCG, the effect is unlikely to be due to higher-risk children having received vaccination. The role of DTP in high mortality areas needs to be clarified.

View Abstract

TAGS

, , , ,

Published: 2000
SYNOPSIS

One dose of diphtheria, tetanus, and pertussis vaccine was associated with a mortality ratio of 1.84 (1.10 to 3.10) and two to three doses with a ratio of 1.38 (0.73 to 2.61) compared with children who had received no dose of these vaccines.”

TITLE

Routine vaccinations and child survival: follow up study in Guinea Bissau, West Africa.

CITATION

Kristensen I, Aaby P, Jensen H. British Medical Journal. 2000 Dec 9;321(7274):1435-8.

SUMMARY

Research on vaccines in developing countries recommended by the World Health Organization has emphasised serological responses and protection against specific diseases. The aim of the research has been to optimise vaccine schedules for control, elimination, or eradication of disease. In modelling exercises, vaccination against diphtheria, pertussis, tetanus, and polio has been assumed to save 1.5­2.0% of the children in areas with high infant mortality. However, these assumptions are not supported by data. Mortality was lower in the group vaccinated with any vaccine compared with those not vaccinated, however, recipients of one dose of diphtheria, tetanus, and pertussis or polio vaccines had higher mortality than children who had received none of these vaccines.

View Abstract

TAGS

, , , ,