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Article History

Received: 31 July 2019

Accepted: 27 May 2020

First Online: 5 June 2020

Ethics approval and consent to participate

: Uganda Ministry of Health through the office of the Director General Health Services gave the directive and approval to conduct this investigation. The office of the Associate Director for Science, Center for Global Health, US Centers for Disease Control and Prevention, Atlanta, determined that this investigation was in response to a public health emergency and not human subjects’ research.We obtained verbal informed consent from case-patients and controls ≥18 years. For participants < 18 years of age, we sought verbal consent from their parents or guardians. We informed the participants that their participation was voluntary and their refusal to participate would not have any negative consequences to them. Before sharing and analyzing the data collaboratively among members of the investigation team, we deleted all identifiable information (i.e., name, address, phone number, etc.).

: Not applicable.

: All authors declare that they have no competing interests.