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The key culprit is the chemical ethylene oxide, which is both a highly effective fumigator and a potent carcinogen.

Using an off-line map, I located the small clinics, called policlínicas, where, at 8 a.m., the inspectors and fumigators of the health brigade gather before dispersing into the streets.

City fumigators usually visit several times during the rainy season to eliminate the pests, but this year, because of the pandemic, they were absent.

Protective clothes for fumigators - including overalls, boots, goggles and masks similar to those worn by teams disinfecting streets and other public places to curb the spread of the virus - come mainly from China.

She made a living as a mechanic, cook, fumigator and bike courier, but also studied Arabic and developed her skills as an illustrator and photographer and was eager to join Knodell in the embed.