Here’s the output – seemed to use mostyl WHO and CDC articles.
- Has mortality from infectious diseases changed after the COVID-19 pandemic?
Date: 2026-04-27
- Short answer
Yes, mortality changed, but not in one simple direction.
- COVID-19 mortality fell sharply after the 2020–2022 peaks. WHO reports that average weekly reported COVID-19 deaths declined from more than 99,000/week at the January 2021 peak to about 8,000/week in early 2023, 2,400/week in late 2023, and 1,400/week in early 2024.
- Several other infectious diseases worsened during and immediately after the pandemic, mainly because of disrupted vaccination, diagnosis, and treatment. The strongest WHO-documented examples are tuberculosis, malaria, and measles.
- However, there is not yet a single current official global estimate for total post-2021 infectious-disease mortality as one aggregate category. WHO’s latest Global Health Estimates for causes of death currently run through 2021, so any claim about the net global total after the pandemic is still partly inferential.
- Bottom line
The best-supported conclusion is:
> Post-pandemic infectious-disease mortality did not simply return to the 2019 baseline once COVID deaths fell.
>
> Direct COVID mortality dropped a lot, but some other infectious diseases rebounded or remained elevated, so the post-pandemic picture is mixed and uneven by disease and region.
- What the strongest evidence says
- 1) COVID-19 deaths fell substantially after the emergency phase
WHO’s December 2024 epidemiological update says:
- Weekly reported COVID-19 deaths rose from >21,000/week in early 2020 to 78,000/week in early 2021, peaking at >99,000/week in January 2021.
- They then fell to >33,000/week in early 2022, 13,000/week in late 2022, 8,000/week in early 2023, 2,400/week in late 2023, and 1,400/week in early 2024.
- WHO also notes that 95% of reported COVID-associated deaths were reported in 2020–2022.
Observation: The direct mortality burden from COVID is far lower now than during the acute pandemic years.
Caveat: WHO explicitly warns that reduced reporting means recent confirmed death counts understate true mortality.
- 2) Tuberculosis mortality increased during the pandemic, then started falling again
WHO’s Global Tuberculosis Report 2024 is one of the clearest examples of pandemic disruption causing non-COVID infectious mortality damage.
Key points:
- TB deaths had been falling globally up to 2019.
- That trend reversed in 2020 and 2021 because COVID-era disruption reduced diagnosis and treatment.
- WHO says TB deaths then fell in 2022 and again in 2023.
- In 2023, WHO estimates 1.09 million TB deaths among HIV-negative people plus 161,000 among people with HIV, for a combined 1.25 million.
- WHO states this combined 2023 total is lower than 2019, but also estimates close to 700,000 excess TB deaths during 2020–2023 due to pandemic-related disruption.
Observation: TB mortality worsened because of the pandemic, then recovered partially.
Inference: Even when aggregate 2023 TB deaths moved back below 2019, the pandemic still caused a large temporary mortality shock.
- 3) Malaria mortality remains above the pre-pandemic level
WHO’s malaria updates show a weaker recovery than TB.
Key points:
- WHO reported 597,000 malaria deaths in 2023.
- WHO’s 2023 briefing states malaria deaths were 576,000 in 2019, rose to 631,000 in 2020, and were still 608,000 in 2022.
- WHO’s 2024 Q&A says malaria deaths are on a long-run downward trend and are 4% lower than 2020, but the 2023 news release says deaths were nearly unchanged from 2022.
Observation: Malaria mortality improved relative to the worst pandemic year, but remained roughly flat in 2022–2023 and above the pre-pandemic 2019 level.
- 4) Measles mortality shows outbreak-driven rebounds tied to vaccination gaps
WHO and CDC report a strong post-pandemic measles resurgence.
Key points:
- Global measles cases reached 10.3 million in 2023, 20% higher than 2022.
- WHO/CDC estimated 107,500 measles deaths in 2023.
- WHO says this was 8% lower than 2022, but still accompanied by a much larger outbreak footprint: 57 countries had large or disruptive outbreaks in 2023, up from 36 the year before.
- WHO’s 2026 fact sheet reports 95,000 measles deaths in 2024, while first-dose coverage in 2024 (84%) remained below 2019 (86%).
- In the WHO European Region, measles cases rose more than 30-fold in 2023 versus 2022, with ~21,000 hospitalizations and 5 deaths reported by October 2023.
Observation: Measles mortality did not rise everywhere at the same rate as cases, but the post-pandemic vaccination gap clearly increased outbreak risk and produced preventable deaths.
- 5) Europe and the United States show broad mortality normalization, but not a clean infectious-disease reset
- Europe
ECDC reported that:
- After the large pandemic-era increases, all-cause mortality in Europe returned to expected pre-pandemic levels by spring 2023.
- At the same time, ECDC warned that reduced population immunity and disrupted circulation patterns could fuel rebounds in respiratory pathogens and other infections.
Interpretation: Europe’s overall mortality normalized faster than some disease-specific infectious risks did.
- United States
The U.S. National Center for Health Statistics reported that:
- The overall age-adjusted death rate in 2024 fell 3.8% versus 2023.
- COVID-19 dropped out of the top 10 causes of death in 2024.
Observation: U.S. mortality patterns also moved away from the acute pandemic phase.
But: this does not by itself prove that all infectious-disease mortality returned to 2019 levels, because some post-pandemic rebounds have been disease-specific rather than visible in the top-line mortality list.
- Best answer to the user’s question
- If the question is about COVID itself
Yes — mortality fell sharply after the pandemic peak years.
- If the question is about infectious diseases overall
Also yes, there was a change — but the change was mixed, not uniformly up or down.
- Down: COVID-19 deaths dropped a lot after 2022.
- Up or disrupted: TB temporarily worsened; malaria remained above pre-pandemic levels; measles outbreaks surged because vaccination coverage slipped.
- Unresolved: We do not yet have a clean, official WHO global aggregate for all infectious-disease mortality after 2021, so any global “net total is higher/lower than before COVID” claim should be treated as unverified.
- Confidence and uncertainty
- High confidence
- COVID mortality is far below its 2020–2022 peak.
- Pandemic disruption increased mortality risk for some other infectious diseases, especially TB and malaria, and increased outbreak burden for measles.
- The post-pandemic effect is heterogeneous across diseases and regions.
- Moderate confidence
- The world has not cleanly reverted to the 2019 infectious-disease mortality pattern, even though all-cause mortality has normalized in some rich regions.
- Low confidence / not yet fully verified
- Any claim about the single global net change in all infectious-disease mortality after 2021. – Reason: WHO’s current global cause-of-death estimates are still only complete through 2021.
- Practical conclusion
If you need a one-sentence answer:
> Yes. After the COVID-19 pandemic, direct COVID mortality dropped sharply, but mortality and outbreak burden from several other infectious diseases either rebounded or remained elevated, so the overall infectious-disease picture changed in a mixed and region-specific way rather than simply returning to pre-pandemic normal.