evidence: A total of 793 deaths following receipt of DTaP vaccines were reported in VAERS during the study period (CDC, unpublished data, 2016). An autopsy report or other type of medical record was available for 682 (86%) reports and reviewed for cause of death. The most frequent reported cause of death was sudden infant death syndrome (SIDS) in 338 (49.6%) reports. Other categories of death included asphyxiation (47 [6.8%]); diseases of the respiratory system (44 [6.5%]); diseases of the circulatory system (27 [3.9%]); certain infections or parasitic diseases (27 [3.9%]); diseases of the nervous system (24 [3.5%]); and congenital malformations, deformations and chromosomal abnormalities (23 [3.4%]). In 90 (13.2%) death reports, the cause was undetermined and in 62 (9.1%) death reports various other causes were reported (e.g., blunt force trauma). These reported frequencies are similar to those observed with overall U.S. infant mortality data and among recipients of other recommended childhood vaccines (128). Two recent VSD studies do not suggest a causal relation or increased risk for death following vaccination of any type (129,130).