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. 2021 Mar 5;7(3):e23154. doi: 10.2196/23154

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©Onicio Leal Neto, Simon Haenni, John Phuka, Laura Ozella, Daniela Paolotti, Ciro Cattuto, Daniel Robles, Guilherme Lichand. Originally published in JMIR Public Health and Surveillance (http://publichealth.jmir.org), 05.03.2021.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work, first published in JMIR Public Health and Surveillance, is properly cited. The complete bibliographic information, a link to the original publication on http://publichealth.jmir.org, as well as this copyright and license information must be included.

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Intrahousehold and interhousehold total time in proximity (in seconds) registered by proximity sensors. The numbers on the Y axis and X axis represent the household ID. Each square represents the social contacts between the different households on the Y axis and the household on the X axis. The number in the square is the total time in proximity (in seconds). The numbers in the diagonal cells represent the total time in proximity among the members in the same household.