Outbreaks Drove Peaks in Case Numbers (Image Credits: Foodsafetynews.com)
Argentina – Public health officials confirmed 94 cases of foodborne and wound botulism across the nation from 2019 through 2025, drawing from comprehensive surveillance data.[1][2]
Outbreaks Drove Peaks in Case Numbers
A significant uptick marked 2022, when authorities recorded 20 confirmed cases – the highest annual total in the period. This surge stemmed from a large outbreak in Misiones province’s Department General Belgrano, affecting 15 individuals linked to contaminated foods.[2] Cases remained relatively steady afterward, though 2025 saw 17 confirmations, including a four-case cluster from a family gathering in the same province.
Overall notifications averaged 31 suspected incidents per year, with a low of 22 in 2020. Health experts noted minor monthly variations post-2022, underscoring the value of ongoing monitoring.[2]
| Year | Confirmed Cases |
|---|---|
| 2019 | 11 |
| 2020 | 12 |
| 2021 | 10 |
| 2022 | 20 |
| 2023 | 14 |
| 2024 | 10 |
| 2025 | 17 |
Nineteen of Argentina’s 23 provinces reported at least one case, with Buenos Aires leading in absolute numbers while Misiones and La Pampa showed elevated rates per capita.[2]
Home Preserves Emerge as Primary Culprit
Every confirmed case involved consumption of canned, preserved, or fermented foods – a pattern that authorities highlighted repeatedly. Common items included escabeche preparations with meats or seafood, vegetable conserves, and sauces like tomato or bean mixes.[2]
Improper processing played a key role: insufficient cooking times or temperatures, coupled with airtight storage without refrigeration, allowed bacterial spores to produce toxins. Type A botulinum toxin dominated lab findings from fecal, serum, and food samples.[2]
- Escabeche varieties (vizcacha, jabalí, oysters, chicken)
- Vegetable and fish conserves
- Fermented spreads like cheese or hummus
- Homemade stews and stuffed meats
Severe Outcomes Prompt Swift Interventions
Symptoms struck rapidly, with patients reporting speech difficulties (61 percent), swallowing issues (54 percent), and muscle weakness (50 percent). Nearly all cases (98 percent) required hospitalization, and 83 percent needed intensive care.[2]
Six fatalities occurred among confirmed patients, distributed across age groups from children to seniors. Providers administered antitoxin to 82 percent of cases, emphasizing early detection’s role in survival. Most affected individuals fell between 20 and 59 years old, with males comprising 57 percent.[2]
Strengthening Prevention Through Education
Officials urged boiling home preserves at 100 degrees Celsius for 30 minutes before eating and discarding any swollen or off-odor containers. Industrial products bearing proper registration offered safer options.[2]
Surveillance improvements, including immediate notifications and sample testing at the National Reference Lab, helped curb spreads. Federal antitoxin stockpiles ensured timely treatment during clusters.
Argentina’s data reveals persistent risks from improper food handling, yet vigilant tracking has stabilized incidences. Key takeaways include boiling preserves thoroughly, favoring certified products, and seeking urgent care for paralysis symptoms.
- 94 confirmed cases linked solely to preserved foods.
- Outbreaks in Misiones underscore regional hotspots.
- Early antitoxin use saved lives in most instances.
What steps do you take to safely preserve foods at home? Share in the comments.
