Social worker Guadalupe Ramos, right, of the Romero Rubio Health Center, gives informational materials about good nutrition to improve the immune system and hygiene measures to prevent coronavirus transmission to the husband of a woman who is in isolation inside their home, as Ramos makes house calls to follow up with people who have tested positive for COVID-19, in Mexico City, Wednesday, Oct. 7, 2020. (AP Photo/Rebecca Blackwell)
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