1. World Health Organization, Novel Coronavirus (2019-nCoV) WHO Thailand Situation Report – 6 February 2020, 2020, see https://cdn.who.int/media/docs/default-source/searo/thailand/20200206-tha-sitrep-01-ncov-final.pdf?sfvrsn=7c8cb671_0.
2. World Health Organization, Coronavirus disease (COVID-19), 2021, see https://www.who.int/emergencies/diseases/novel-coronavirus-2019/question-and-answers-hub/q-a-detail/coronavirus-disease-covid-19.
3. U.S. Department of Health and Human Services, COVID-19 Testing, 2020, see https://www.hhs.gov/coronavirus/testing/index.html.
4. Purak Adhikari, Shanker Dhakal, Performance Assessment of COVID-19 Swab Collection Booth (SCB) 2021, KEC International Conference on Engineering and Technology.
5. Design and evaluation of a portable negative pressure hood with HEPA filtration to protect health care workers treating patients with transmissible respiratory infections