A video of a rainbow forming in the wake of a truck spraying moisture over a street has been viewed tens of thousands of times on Twitter and YouTube alongside a claim that the footage shows a truck disinfecting a street in China in an effort to contain the novel coronavirus. This claim is false; the video, which shows a truck spraying in China's Sichuan province for dust control purposes, has circulated online since at least March 2019, months before the viral outbreak.
The video was published on Twitter here on February 14, 2020. It has been viewed nearly 68,000 times.
The post's caption states: "Only in China! #COVID19 coronavirus disinfection rainbow." Below is a screenshot of the tweet:
At least 2,118 people have been killed by the coronavirus and in mainland China alone over 74,000 people have been infected, AFP reported. China has taken drastic measures to curb the virus, including widespread disinfecting of buildings and streets.
However, the claim about the rainbow forming in disinfectant is false.
A reverse image search and a keyword search found this identical video, which was posted on the Chinese mobile app Douyin on March 29, 2019. Douyin is the Chinese version of the video-sharing app TikTok.
Below is a screenshot of the Douyin video, which is captioned "#RainbowMachine":
The same video was also published here on the verified Weibo account of Chengdu Evening Post, a Sichuan-based newspaper, on April 2, 2019.
The video's simplified Chinese caption translates to English as: "#MiddayShare# A #RainbowMachine#(heart emoji)".
A comment on one of the videos suggested the video was filmed at "Xichang Brands Avenue footbridge", as seen in the screenshot below:
Below is a screenshot of the Baidu Maps imagery of the filming location:
Liangshan Daily, a local newspaper, also reported the rainbow in this March 21, 2019 article, which was titled "Online sensation 'cannon-looking sprinkler' makes fresh air in the city".
The report features a photograph that shows a similar rainbow sighting alongside a caption: "Rainbow appears behind a 'cannon-looking sprinkler'".
Below is a screenshot of the photo:
The article states in part: "In January last year, the Environmental Hygiene Department of Xichang Urban Administrative and Law Enforcement Bureau added two multi-functional dust suppression vehicles to the existing collection of street sweepers and sprinklers. In March this year, three additional dust control trucks were purchased. Every morning, afternoon and evening, a total of five dust control vehicles sprayed water on the main streets for dust control purposes."
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