https://www.who.int/es/emergencies/diseases/novel-coronavirus-2019/advice-for-public/q-a-coronaviruses

https://www.cdc.gov/coronavirus/2019-ncov/downloads/2019-ncov-factsheet-sp.pdf

https://www.cdc.gov/coronavirus/2019-ncov/downloads/sick-with-2019-nCoV-fact-sheet-sp.pdf

https://www.cdc.gov/coronavirus/2019-ncov/faq-sp.html