Increased Incidence of Invasive Pneumococcal Disease among Children after COVID-19 Pandemic, England

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Abstract

During July–December 2021, after COVID-19 restrictions were removed in England, invasive pneumococcal disease incidence in children <15 years of age was higher (1.96/100,000 children) than during the same period in 2020 (0.7/100,000 children) and in prepandemic years 2017–2019 (1.43/100,000 children). Childhood vaccine coverage should be maintained to protect the population.

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Pediatric Infectious Disease Group (GPIP) position paper on the immune debt of the COVID-19 pandemic in childhood, how can we fill the immunity gap?

Robert Cohen, Marion Ashman, Muhamed-Kheir Taha … (2021)

Since the beginning of the COVID-19 pandemic, reduced incidence of many viral and bacterial infections has been reported in children: bronchiolitis, varicella, measles, pertussis, pneumococcal and meningococcal invasive diseases. The purpose of this opinion paper is to discuss various situations that could lead to larger epidemics when the non-pharmaceutical interventions (NPI) imposed by the SARS-CoV-2 epidemic will no longer be necessary. While NPIs limited the transmission of SARS-CoV-2, they also reduced the spread of other pathogens during and after lockdown periods, despite the re-opening of schools since June 2020 in France. This positive collateral effect in the short term is welcome as it prevents additional overload of the healthcare system. The lack of immune stimulation due to the reduced circulation of microbial agents and to the related reduced vaccine uptake induced an "immunity debt" which could have negative consequences when the pandemic is under control and NPIs are lifted. The longer these periods of "viral or bacterial low-exposure" are, the greater the likelihood of future epidemics. This is due to a growing proportion of "susceptible" people and a declined herd immunity in the population. The observed delay in vaccination program without effective catch-up and the decrease in viral and bacterial exposures lead to a rebound risk of vaccine-preventable diseases. With a vaccination schedule that does not include vaccines against rotavirus, varicella, and serogroup B and ACYW Neisseria meningitidis , France could become more vulnerable to some of these rebound effects.

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Impact of the COVID-19 Pandemic on Invasive Pneumococcal Disease and Risk of Pneumococcal Coinfection with SARS-CoV-2: prospective national cohort study, England

Zahin Amin-Chowdhury, Felicity Aiano, Anna Mensah … (2020)

Abstract Background Streptococcus pneumoniae coinfection with influenza results in synergistic lethality, but there are limited data on pneumococcal coinfection with SARS-CoV-2. Methods Public Health England conducts invasive pneumococcal disease (IPD) and SARS-CoV-2 surveillance in England. IPD trends during 2000/01-2019/20 were analysed and cases between during February-June 2020 were linked with laboratory-confirmed SARS-CoV-2 infections. Multivariable logistic regression was used to assess risk factors for death. Results IPD incidence in 2019/20 (7.6/100,000; n=3,964) was 30% (IRR 0.70, 95%CI, 0.18-2.67) lower compared to 2018/19 (10.9/100,000; n=5,666) with large reductions observed across all age-groups during March-June 2020. The serotypes responsible for IPD during 2019/20 were similar to previous years. There were 160,886 SARS-CoV-2 and 1,137 IPD cases during February-June 2020, including 40 IPD/COVID-19 (0.025% [95%sCI, 0.018-0.034] of SARS-CoV-2 infections; 3.5% [95%CI, 2.5-4.8] of IPD cases), 21 with COVID-19 diagnosed 3-27 days after IPD and 27 who developed COVID-19 ≥28 days after IPD. Case-fatality rates (CFR) were 63.2% (25/40), 47.6% (10/21) and 33.3% (9/27), respectively (p<0.001). In addition to an independent association with increasing age and pneumococcal serotype group, CFR was 7.8-fold (95% CI, 3.8-15.8) higher in those with IPD/COVID-19 co-infection and 3.9-fold (95% CI, 1.4-10.7) higher in patients who developed COVID-19 3-27 days after IPD compared to patients with IPD only. Conclusions Large declines in IPD were observed following COVID-19 lockdown in England. IPD/COVID-19 confections were rare but associated with high CFR, mainly in older adults. The rarity, age distribution and serotype distribution of IPD/SARS-CoV-2 coinfections does not support wider extension of pneumococcal vaccination.

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Decline in Pneumococcal Disease in Young Children during the COVID-19 Pandemic in Israel Associated with Suppression of seasonal Respiratory Viruses, despite Persistent Pneumococcal Carriage: A Prospective Cohort Study

Dana Danino, Shalom Ben-Shimol, Bart Van Der Beek … (2021)

Background The incidence of invasive pneumococcal disease (IPD) declined during the COVID-19 pandemic. Previous studies hypothesized that this was due to reduced pneumococcal transmission resulting from non-pharmaceutical interventions. We used multiple ongoing cohort surveillance projects in children <5 years to test this hypothesis. Methods The first SARS-CoV-2 cases were detected in February-2020, resulting in a full lockdown, followed by several partial restrictions. Data from ongoing surveillance projects captured the incidence dynamics of community-acquired alveolar pneumonia (CAAP), non-alveolar lower respiratory infections necessitating chest X-rays (NA-LRI), nasopharyngeal pneumococcal carriage in non-respiratory visits, nasopharyngeal respiratory virus detection (by PCR), and nationwide invasive pneumococcal disease (IPD). Monthly rates (January-2020 through February-2021 vs. mean monthly rates 2016-2019 [expected rates]) adjusted for age and ethnicity, were compared. Results CAAP and bacteremic pneumococcal pneumonia were strongly reduced (incidence rate ratios, [IRRs] .07 and .19, respectively); NA-LRI and non-pneumonia IPD were also reduced, with a lesser magnitude (IRRs, .46 and .42, respectively). In contrast, pneumococcal carriage prevalence was only slightly reduced, and density of colonization and pneumococcal serotype distributions were similar to previous years. The decline in pneumococcus-associated disease was temporally associated with a full suppression of RSV, influenza viruses, and hMPV, often implicated as co-pathogens with pneumococcus. In contrast, adenovirus, rhinovirus, and parainfluenza activities were within or above expected levels. Conclusions Reductions in pneumococcal and pneumococcus-associated diseases occurring during the COVID-19 pandemic in Israel were not predominantly related to reduced pneumococcal carriage and density, but were strongly associated with the disappearance of specific respiratory viruses.

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Author and article information

Journal

Journal ID (nlm-ta): Emerg Infect Dis

Journal ID (iso-abbrev): Emerg Infect Dis

Journal ID (publisher-id): EID

Title: Emerging Infectious Diseases

Publisher: Centers for Disease Control and Prevention

ISSN (Print): 1080-6040

ISSN (Electronic): 1080-6059

Publication date (Print): August 2022

Volume: 28

Issue: 8

Pages: 1669-1672

Affiliations

[1]UK Health Security Agency, London, UK (M. Bertran, Z. Amin-Chowdhury, C.L. Sheppard, S. Eletu, D.V. Zamarreño, M.E. Ramsay, D. Litt, N.K. Fry, S.N. Ladhani);

[2]St George's University of London, London (S.N. Ladhani)

Author notes

Address for correspondence: Shamez Ladhani, Immunisation and Vaccine Preventable Diseases, UK Health Security Agency, 61 Colindale Ave, London NW9 5EQ, UK; email: shamez.ladhani@ 123456ukhsa.gov.uk

Article

Publisher ID: 22-0304

DOI: 10.3201/eid2808.220304

PMC ID: 9328924

PubMed ID: 35876698

SO-VID: 08ab1732-68ce-449d-a67b-556ad12dd717

License:

Emerging Infectious Diseases is a publication of the U.S. Government. This publication is in the public domain and is therefore without copyright. All text from this work may be reprinted freely. Use of these materials should be properly cited.

Increased Incidence of Invasive Pneumococcal Disease among Children after COVID-19 Pandemic, England

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Most cited references 10

Pediatric Infectious Disease Group (GPIP) position paper on the immune debt of the COVID-19 pandemic in childhood, how can we fill the immunity gap?

Impact of the COVID-19 Pandemic on Invasive Pneumococcal Disease and Risk of Pneumococcal Coinfection with SARS-CoV-2: prospective national cohort study, England

Decline in Pneumococcal Disease in Young Children during the COVID-19 Pandemic in Israel Associated with Suppression of seasonal Respiratory Viruses, despite Persistent Pneumococcal Carriage: A Prospective Cohort Study

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