2019 Novel Coronavirus (2019-nCoV) en-us (11 February 2020). ციტატა: „The virus is thought to spread mainly from person-to-person ... through respiratory droplets produced when an infected person coughs or sneezes.“ ციტირების თარიღი: 18 February 2020
Q&A on coronaviruses (11 February 2020). ციტატა: „The disease can spread from person to person through small droplets from the nose or mouth which are spread when a person with COVID-19 coughs or exhales ... The main way the disease spreads is through respiratory droplets expelled by someone who is coughing.“ ციტირების თარიღი: 24 February 2020