Neonatal deaths are defined as deaths in the first four weeks of life, from the moment after birth until 28 days later. Recently, he obtained data on the quarterly number of neonatal deaths beginning Q1 2019). Here is what that looks like:

The quarterly number of neonatal deaths is very low, hovering between 4-8 for 2019 and 2020. Then in the second quarter of 2021, it suddenly jumps three-fold to 17, dips again in quarter 3 and then jumps again to 18 in the last quarter of the year.

Since the total number of births changes little from month to month, these spikes are about triple the usual rate of neonatal deaths. (I confirmed this using data from a separate FOIA he filed with monthly data on live births from April 2019.)

In February, 2021, the Israeli Ministry of Health started to officially recommend COVID-19 vaccines for pregnant women in their 2nd and 3rd trimesters, so the timing of the second quarter spike would coincide with women being jabbed later in their pregnancy 2-4 months prior.

The 4th quarter spike coincides with the booster vaccination campaign in Israel in August and especially September — a drive that aggressively targeted pregnant women. Unfortunately the health insurer claimed not to have information on the vaccination status of pregnant women, so we are not able to differentiate by vaccination status.