Infectious Diseases 2021

Infectious Diseases 2021

Decreased incidence of infections caused by foodborne pathogens during the COVID-19 pandemic

MMWR Weekly / September 24, 2021 / 70(38);1332–1336 24 September, 2021

The 26% decrease in incidence of infections caused by pathogens transmitted commonly through food during 2020 was the largest single-year variation in incidence during 25 years of FoodNet surveillance; widespread public health interventions implemented to prevent SARS-CoV-2 transmission might have contributed to this decrease. 
During 2020, FoodNet identified 18,462 cases of infection, 4,788 hospitalizations, and 118 deaths. The overall incidence was highest for Campylobacter (14.4 per 100,000 population), followed by Salmonella (13.3).
Among 5,336 (91%) fully serotyped Salmonella isolates in 2020, the seven most common serotypes were Enteritidis (1.6 per 100,000 population), Newport (1.5), Javiana (1.0), Typhimurium (0.9), I 4,[5],12:i:- (0.5), Hadar (0.4), and Infantis (0.3).

 

Pathogen No. of
infections
 No. (%)    Incidence  % change in incidence,
  2017–2019 to 2020
  
 Hospitalizations  Deaths  Outbreak-associated
cases
 Campylobacter  7,208  1,524 (21)  25 (0.3)  19 (0.3)  14.4  −23 (−29 to −16)
 Salmonella  6,694  1,971 (29)  48 (0.7)  631 (9)  13.3  −22 (−26 to −17)