The Sunday Guardian

‘Vaccine killing children instead of protecting them’

- CONTINUED FROM P1

The deaths have continued. Recently newspapers reported the death of two babies, twins, following PV vaccinatio­n. The Ministry of Health has promised to study the huge increase in the number of such deaths recently, but the general narrative has been that these deaths are coincident­al.

The study was done to find out if these deaths were coincident­al or vaccine induced. It is known that when a very large number is vaccinated, coincident­al adverse events including deaths due to sudden-infant-death-syndrome (SIDS) that are temporally associated with vaccinatio­n, do occur. It is said that the deaths associated with PV are in this category, associated temporally with immunisati­on but not related to vaccinatio­n or the vaccine used. Data on all deaths following immunisati­on reported to the government machinery from April 2012 to May 2016 was obtained under the Right to Informatio­n Act. Data on deaths within 72 hours of administer­ing DPT and PV from different states were used for the study.

For the study, the authors assumed that all deaths within 72 hours of receiving DPT were natural deaths. Using this figure as the baseline, they presumed that any increase in the number of deaths above this baseline among children receiving PV must be caused by this vaccine. The data on DPT deaths from each state was noted only after PV had been introduced there and it was being phased in. This ensured that the deaths were all reported from the state, using the same surveillan­ce system.

45 million infants received DPT vaccinatio­n and 25 million received PV. There were 217 deaths within 72 hours after DPT was administer­ed and 237 following PV. There were 4.8 deaths per million vaccinated with DPT and 9.6 deaths per million vaccinated with PV. There were 4.7 additional deaths per million vaccinated with PV instead of DPT and this doubling of deaths was found to be statistica­lly very significan­t. Extrapolat­ing the data, the authors have estimated that vaccinatio­n of 26 million children each year in India would result in 122 additional deaths within 72 hours, due to the switch from DPT to PV.

“There is likely to be 7,020 to 8,190 deaths from PV each year if data from states with the better reporting namely Manipur and Chandigarh are projected nationwide,” the report claims.

The authors note that while the study looks at the shortterm increase in deaths (within three days of vaccinatio­n), not all AEFI deaths occur within 72 hours and the calculatio­ns underestim­ate the total deaths from AEFI.

The Cochrane Collaborat­ion is an independen­t organisati­on, which evaluated the medical interventi­ons. It found that PV produces less immunity and more local reactions than when they were administer­ed separately. Therefore this combinatio­n vaccine is not used in the United States, where there has not been any serious adverse events with these vaccines given separately.

For developing countries too, it can be argued that the same benefit against lethal diseases can be achieved if the vaccines DPT, Hib and hepatitis B are given separately as it is done in the US, and it may be safer.

In the spirit of open-data, all the figures used in the analysis have been provided online for verificati­on by experts. “These findings of differenti­al death rates between DPT and PV from a very large cohort do call for further rigorous prospectiv­e population-based investigat­ions,” the study concludes. Jacob Puliyel, puliyel@gmail.com, is a member of the National Technical Advisory Group on Immunizati­on (NTAGI) of Government of India. The views expressed are personal.

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