How does DTP affect Mortality from Other Causes?

A recent study published in E Bio Medicine, grabbed  data of a group of infants vaccinated with DTP and/or Oral Polio from 3 to 5 months of age. Vaccines were given out every three months, making it possible to grab data based on birth date, rather than health state of the infants, eliminating a significant source of bias that results from not vaccinating babies who are ill.
DTP protects infants from the diphtheria, pertussis and tetanus, but might be increasing mortality from other causes. Oral polio vaccine did not make  things worse, but might have mitigated the problem, according to the data from this study, carried out from cases collected in the 1980s in an urban area of Guinea-Bissau.
This calls for more collection of data on how vaccines affect mortality from other causes than the diseases being prevented.
Check it out HERE.