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A public health worker fumigates as part of a campaign against dengue-promoting mosquitoes, in Buenos Aires, Argentina, Friday, April 5, 2024. A nationwide increase in dengue fever cases as resulted in the demand for repellents to avoid the bite of the mosquito that transmits the disease, causing a shortage and exorbitant prices where available. (AP Photo/Natacha Pisarenko)
Patients with dengue symptoms wait to be attended at a hospital in Buenos Aires, Argentina, Friday, April 5, 2024. A nationwide increase in dengue fever cases as resulted in the demand for repellents to avoid the bite of the mosquito that transmits the disease, causing a shortage and exorbitant prices where available. (AP Photo/Natacha Pisarenko)
A piece of paper with a message that reads in Spanish: "There is no repellent" is taped to a storefront in Buenos Aires, Argentina, Thursday, April 4, 2024. An increase in dengue fever cases as resulted in the demand for repellents to avoid the bite of the mosquito that transmits the disease, causing a shortage and exorbitant prices where available. (AP Photo/Natacha Pisarenko)
A woman sprays herself with a makeshift mosquito repellant of vanilla and water as she waits to be attended at a hospital amid a surge in dengue fever cases, in Buenos Aires, Argentina, Friday, April 5, 2024. A nationwide increase in dengue fever cases as resulted in the demand for repellents to avoid the bite of the mosquito that transmits the disease, causing a shortage and exorbitant prices where available. (AP Photo/Natacha Pisarenko)
A guard sprays insecticide inside a hospital area where patients with dengue symptoms wait to be attended in Buenos Aires, Argentina, Friday, April 5, 2024. A nationwide increase in dengue fever cases as resulted in the demand for repellents to avoid the bite of the mosquito that transmits the disease, causing a shortage and exorbitant prices where available. (AP Photo/Natacha Pisarenko)