In January 2015, a physician in a Buenos Aires hospital telephoned the Ministry of Health (MOH) to report three possible cases of botulism. The patients, all men in their 30s, presented with drooping eyelids, double vision, difficulty swallowing, and respiratory problems. One patient had onset of symptoms on February 2, the other two on February 5. All three men worked in a local meat factory. What type of study is this?

Question

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A case series involves a group of patients with a similar diagnosis, in this case, three men with suspected botulism, and describes their clinical presentation and potential common exposure.

In January 2015, a Physician in a Buenos Aires Hospital