- https://www.paho.org/hq/index.php?option=com_docman&view=download&slug=laboratory-guidelines-for-detection-and-diagnosis-of-the-novel-coronavirus-2019-ncov-infection&Itemid=270&lang=es
- https://www.paho.org/hq/index.php?option=com_docman&view=download&slug=directrices-de-laboratorio-para-la-deteccion-y-diagnostico-de-la-infeccion-con-el-nuevo-coronavirus-2019-2019-ncov&Itemid=270&lang=es