Video of poisoned cattle unrelated to Covid vaccination

"WARNING. Graphic Footage. Northern Italy," says a June 2, 2023 tweet sharing the video. "Government came and vaccinated cattle against cv19. Look at the result all dead or dying the next day."

The post uses #diedsuddenly, a reference to a 2022 film filled with false claims about Covid-19 vaccination. The clip of the sick cattle also circulated on Instagram and on Facebook in Polish.

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Screenshot of a tweet taken June 6, 2023

But the claims in the posts are false.

Reverse image searches indicate the original footage was published in articles covering an August 2022 incident in northwest Italy. AFP reported at the time that around 50 Piedmontese cattle on a farm in Sommariva del Bosco, near Turin, died due to acute prussic acid poisoning.

The acid comes from dhurrin, a chemical compound that naturally occurs in plants such as young sorghum, although not in the same high concentrations as those found in samples taken at the site.

"We suspect that the drought caused this very large quantity of dhurrin within the sorghum plants," Stefano Giantin, a veterinarian at the Istituto Zooprofilattico Sperimentale who handled the case, told AFP in August 2022.

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Stefano Giantin collects sorghum for laboratory tests in the field where 50 cows were poisoned on August 16, 2022 in Sommariva del Bosco, near Turin ( AFP / Marco Bertorello)

Dhurrin normally "doesn't cause death," Giantin said. But a lack of plant growth due to drought can cause an increase in the compound's concentration.

Giantin told AFP again on April 31, 2023 that the cows "did not die because they received the vaccine for Covid." The animals never got the shot, he said.

Instead, Giantin confirmed the cows suffered from "hydrogen cyanide poisoning," another name for prussic acid.

While some of the animals died quickly, experts saved around 30 cows by injecting them with sodium thiosulfate to neutralize the hydrogen cyanide. Three more farms in the Piedmont area experienced the same phenomenon that summer.

AFP previously debunked a claim that some Covid-19 vaccines can transfer through meat consumption.