Review some of this information on Coronavirus (COVID-19) from the CDC (Centers for Disease Control and Prevention) and IDPH (Illinois Department of Public Health) webpages:
http://dph.illinois.gov/covid19
in 300 words or less, answer the following question in essay format while using APA citations and references.
- List all descriptive observational study designs and state three ways in which they are different.
a. Which design is most used now to identify new covid cases?