In June 2020, UNHCR donated 48 RHUs for various cities across Mexico to build additional infrastructure in support of their COVID-19 relief strategies. When the COVID-19 pandemic became a global concern, many services were shut down due to regulations, which had a significant effect on the refugee populations, both new to the country and awaiting documentation. 

UNHCR provided the RHUs to extend the necessity of health clinics as self-contained, modular and with easy and rapid installation upon need. 

The RHUs have been installed on the grounds of hospitals, health centers and COVID-19 clinics from north to south: in Palenque, Tapachula, Huixtla, Ciudad Hidalgo and Escuintla, Chiapas; and Tenosique, Tabasco; as well as in the Ranzahuer shelters in Oluta, Veracruz and Hermanos en el Camino in Ixtepec, Oaxaca.

In addition, RHUs were installed in  Matamoros, Tamaulipas, as well as in camp settlements  in Reynosa, Tamaulipas; and Tijuana, Baja California; and at the Las Granjas Community Center in Ciudad Acuña, Coahuila.