"The report summarizes preliminary 2019 data and describes changes in incidence compared with that during 2016–2018. The incidence of enteric infections caused by these eight pathogens reported by FoodNet sites in 2019 continued to increase or remained unchanged, indicating progress in controlling major foodborne pathogens in the United States has stalled. "
But they also state, "Recent increases in foodborne illness might be due, in part, to increased testing and improved technologies. Quick and easy culture-independent diagnostic tests continue to reveal infections that might not have been diagnosed in the past because of limited testing. At the same time, whole genome sequencing and other new laboratory technologies have enhanced our ability to identify outbreaks, emerging strains, and sources of infection."
So comparing year to year may not be valid because more tests are being completed and the tests are more accurate. Table 1 from that document gives number of infections which shows Campylobacter and Salmonella as the two most prevalent types of foodborne pathogens.