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. 2022 Jun;50(3):767-770.
doi: 10.1007/s15010-022-01770-6. Epub 2022 Feb 16.

The impact of COVID-19 pandemic control on vaccine-preventable invasive bacterial diseases in Piedmont (Italy)

Marco Peradotto  1 , A Bondi  2 , D Lombardi  3 , P Bottino  2 , E Zanotto  2 , A M Barbui  2 , R Cavallo  2
Affiliations

The impact of COVID-19 pandemic control on vaccine-preventable invasive bacterial diseases in Piedmont (Italy)

Marco Peradotto et al. Infection. 2022 Jun.

Abstract

Purpose: The impact of SARS-CoV-2 pandemic on other pathogens is largely unknown. We aimed to compare the prevalence of vaccine-preventable invasive bacterial infections before and during the pandemic in Piedmont (Italy).

Methods: We defined the monthly incidence of S. pneumoniae, H. influenzae and N. meningitides-invasive diseases from January 2010 to June 2021. Then, we compared the mean monthly cases during the previous 5 years (2015-2019) and the monthly cases in 2020 or 2021.

Results: We found significant reductions for invasive pneumococcal diseases (IPDs) in adults and H. influenzae-invasive diseases in 2020 and 2021 in comparison to the previous years, but not for invasive meningococcal diseases and IPDs in children.

Conclusions: Further data are needed to confirm these findings and define possible post-pandemic evolutions in the epidemiology of vaccine-preventable invasive bacterial diseases.

Keywords: Bacterial-invasive infections; COVID-19 pandemic; Social distancing; Vaccine-preventable diseases.

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Conflict of interest statement

The authors declare that they have no conflict of interest.

Figures

Fig. 1
Fig. 1
a Invasive pneumococcal disease (IPD) cases notified in the paediatric population from January 2010 to June 2021, based on 4-month periods; b IPD cases notified in the adult population from January 2012 to June 2021, based on 4-month periods; c monthly cases of IPD in the adult population in 2020 and 2021 compared to the mean cases of previous 5 years; in comparison to the previous years, Italian population continuously applied BM from February 2020; L: lockdown period; SD: more strict social distancing rules periods; d invasive meningococcal disease (IMD) cases notified from January 2010 to June 2021, based on 4-month periods; e IMD cases notified from January 2010 to June 2021, according to serogroup; NT non-typeable; f HI-invasive disease cases notified from January 2012 to June 2021, based on 4-month periods
See this image and copyright information in PMC

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