1. Centers for Disease Control and Prevention (2022, August 18). CDC Museum COVID-19 Timeline, Available online: https://www.cdc.gov/museum/timeline/covid19.html.
2. Centers for Disease Control and Prevention (2022, August 19). COVID-19: Stop the Spread of Germs 2020, Available online: https://www.facebook.com/cdc/posts/pfbid02WnY8NnQgA3mqYsgvKorZbGSWDAc8N291YXX9V1iRueFtsH8YQDGVjLdd2tgfuFnJl?__cft__[0]=AZW4oNcre1cENJSydA2njDFw-7csuQFsWvCu-FtBmA9tIcxPYluzVnRldT-QdWIrM3kblA7-oUwQjGswbFUuuufUfT7X0FqN32U3r6rI2kCzlV_R9JoYwHcevoEg1HeRtjPb4G3J-xPYVBpInz48EZ3F&__tn__=%2CO%2CP-R.
3. Centers for Disease Control Facebook Page (2022, August 18). Wondering if a Mask Would Protect You from COVID-19?. Available online: https://www.facebook.com/cdc/posts/pfbid02f4JBbsKWeEvZe1c6V1Gsvs1jDixoH9qRpwonebiY4QtaJGVaXs9K4FnNqB91cAm3l?__cft__[0]=AZWtQDpU3TRZ9RTLJrbXWOi98FW5DhWq8Uskn3vssi5Eh_t3VEgPvRH2NGGcIJrcpVwGLFBS-lk3i80XNb7v9dR_N2knM_cpoGlnaIB32ak2QhdrBzTxiC_xSYgwGTTLxc-DYG_nCjemFllecZwyR2vo&__tn__=%2CO%2CP-R.
4. Aguirre-Duarte, N. (2020). Can People with Asymptomatic or Pre-Symptomatic COVID-19 Infect Others: A Systematic Review of Primary Data. Public Glob. Health.
5. Centers for Disease Control and Prevention (2022, August 18). CDC’s Recommendation Use of Cloth Face Coverings, Available online: https://www.facebook.com/cdc/posts/pfbid02nQu9YMpKs2VCGykarMGWiybxA48m1s61jWVLUjZaZ3tB1m1kAcp19axGBYD1Qjg1l?comment_id=10157784741681026&reply_comment_id=10157784769721026.