citation needs.        This science brief has been updated to reflect current kn

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citation needs.        This science brief has been updated to reflect current knowledge about SARS-CoV-2 transmission and reformatted to be more concise.
Modes of SARS-CoV-2 transmission are now categorized as inhalation of virus, deposition of virus on exposed mucous membranes, and touching mucous membranes with soiled hands contaminated with virus.
Although how we understand transmission occurs has shifted, the ways to prevent infection with this virus have not. All prevention measures that CDC recommends remain effective for these forms of transmission.
Read the discussion on this topic at:
Download Science Brief_ SARS-CoV-2 and Surface (Fomite) Transmission for Indoor Community Environments _ CDC.pdf 
Download Scientific Brief_ SARS-CoV-2 Transmission _ CDC.pdf 
About COVID-19 Epidemiology
Investigating COVID-19: The Science Behind CDCs Response
Updated July 1, 2020
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When a new infectious disease is discovered, scientists called epidemiologists work with other scientists to find who has it, why they have it, and what CDC can do about it. From the beginning of the COVID-19 outbreak, scientists at CDC and around the world have been working to:
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Epidemiologists went to the area in China where the disease first appeared and conducted surveys in the community and health facilities. They collected nose and throat specimens for lab analyses. These field investigations showed them who was infected, when they became sick, and where they had been just before they got sickand ultimately led them to a possible source.
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CDC keeps track of the number of COVID-19 cases and collects information on the disease from surveillance systems that report different kinds of data, such as new cases, hospitalizations, deaths, demographic information (like age, race/ethnicity, or sex), symptoms, and treatments.
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CDC scientists use surveillance data, including information from  and other kinds of studies, to find out more about the disease, such as how long someone with COVID-19 is contagious, risk factors for severe illness, and which medical treatments are most effective.
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Using study findings, case counts, and surveillance, CDC publishes resources to help people in different risk groups (like healthcare workers or older people) stay safe in different settings (like grocery stores, home, or school). This guidance is constantly being updated as new information become available.
In your discussion describe the following:
1. the mode of transmission for the COVID 19 virus
2.Identify the portals of entry of the COVID 19 virus
3. As a nurse, what interventions will you put in place to mitigate its entry..(eg infection control practices/transmission based precautions)
4. Describe the role of epidemiology in addressing Emerging Infectious Disease such as CPVOD 19.
Reference:
https://www.cdc.gov/coronavirus/2019-ncov/science/about-epidemiology/index.html

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