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Published on: November 5, 2019
Impact of COVID-19 pandemic and the lockdown on invasive meningococcal disease
Muhamed-Kheir Taha1, Ala-Eddine Deghmane2
1Invasive Bacterial Infections Unit and the National Reference Centre for Meningococci and Haemophilus influenzae, Paris, France. mktaha@pasteur.fr.
Objective:
Few data are available on the association between SARS-CoV-2 and secondary bacterial infections. Such an association was described for flu and invasive meningococcal disease (IMD). We aimed exploring such a correlation between COVID-19 and IMD as well as the impact of the lockdown on IMD.
Results:
We compared IMD cases received at the French National Reference Centre for meningococci and Haemophilus influenzae that are sent as part of the mandatory reporting of IMD. We compared these data during the period 01 January-15 May 2020 to those from the same period in 2018 and 2019. IMD cases that were associated with respiratory presentations significantly increased in 2020 compared to 2018 (P = 0.029) and 2019 (P = 0.002), involved elderly and were due to unusual isolates. However, IMD cases due to hyperinvasive isolates decreased during the lockdown. Enhancing IMD surveillance and anti-meningococcal vaccination in elderly should be addressed.
Insights
The study found that COVID-19 was associated with an increase in respiratory-linked invasive meningococcal disease (IMD) cases, particularly in the elderly. However, hyperinvasive IMD cases decreased during the lockdown period.
Area of Science:
- Infectious Diseases
- Epidemiology
- Public Health
Background:
- Limited data exist on the link between SARS-CoV-2 (COVID-19) and secondary bacterial infections.
- Previous research noted associations between influenza and invasive meningococcal disease (IMD).
Purpose of the Study:
- To investigate the correlation between COVID-19 and IMD.
- To assess the impact of the COVID-19 lockdown on IMD incidence.
Main Methods:
- Comparison of IMD cases reported to the French National Reference Centre between January 1-May 15, 2020, and the same periods in 2018 and 2019.
- Analysis of IMD case characteristics, including association with respiratory symptoms, age group, and causative isolates.
Main Results:
- A significant increase in IMD cases with respiratory presentations was observed in 2020 compared to 2018 and 2019.
- These 2020 cases primarily affected the elderly and involved unusual meningococcal isolates.
- Conversely, IMD cases caused by hyperinvasive meningococcal isolates declined during the lockdown.
Conclusions:
- The findings suggest a potential association between COVID-19 and specific types of IMD.
- The study highlights the need for enhanced IMD surveillance and increased anti-meningococcal vaccination, especially among the elderly.
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