Quote:
Originally Posted by KCUnited
Seems the nuance is in the definition of exposure which by cdc guidelines in <6' for >15 minutes.
https://www.cdc.gov/coronavirus/2019...endations.html
** Data to inform the definition of close contact are limited. Factors to consider when defining close contact include proximity, the duration of exposure (e.g., longer exposure time likely increases exposure risk), and whether the exposure was to a person with symptoms (e.g., coughing likely increases exposure risk). While research indicates cloth face coverings may help those who are infected from spreading the infection, there is less information regarding whether cloth face coverings offer any protection for a contact exposed to a symptomatic or asymptomatic patient. Therefore, the determination of close contact should be made irrespective of whether the person with COVID-19 or the contact was wearing a cloth face covering. Because the general public has not received training on proper selection and use of respiratory PPE, it cannot be certain whether respiratory PPE worn during contact with an individual with COVID-19 infection protected them from exposure. Therefore, as a conservative approach, the determination of close contact should generally be made irrespective of whether the contact was wearing respiratory PPE, which is recommended for health care personnel and other trained users, or a cloth face covering recommended for the general public.
***Data are insufficient to precisely define the duration of time that constitutes a prolonged exposure. Recommendations vary on the length of time of exposure, but 15 minutes of close exposure can be used as an operational definition. Brief interactions are less likely to result in transmission; however, symptoms and the type of interaction (e.g., did the infected person cough directly into the face of the exposed individual) remain important. |
What about the micro droplets that stay in the air for hours?
What about the fact that this very piece of information states that their dats is insufficient?
What about since they did this "update" and changed those criteria cases have ballooned?