*For the aim of this steering, fever is outlined as subjective fever (feeling feverish) or a measured temperature of 100.4°F (38°C) or larger. Notice that fever could also be intermittent or is probably not current in some folks, equivalent to those that are aged, immunocompromised, or taking sure fever-reducing drugs (e.g., nonsteroidal anti-inflammatory medicine [NSAIDS]).
** Information to tell the definition of shut contact are restricted. Elements to contemplate when defining shut contact embody proximity, the period of publicity (e.g., longer publicity time seemingly will increase publicity threat), and whether or not the publicity was to an individual with signs (e.g., coughing seemingly will increase publicity threat). Whereas analysis signifies masks might assist those that are contaminated from spreading the an infection, there’s much less data relating to whether or not masks supply any safety for a contact uncovered to a symptomatic or asymptomatic affected person. Due to this fact, the willpower of shut contact needs to be made no matter whether or not the individual with COVID-19 or the contact was carrying a masks. As a result of most of the people has not acquired coaching on correct choice and use of respiratory PPE, it can’t be sure whether or not respiratory PPE worn throughout contact with a person with COVID-19 an infection protected them from publicity. Due to this fact, as a conservative strategy, the willpower of shut contact ought to typically be made no matter whether or not the contact was carrying respiratory PPE, which is advisable for well being care personnel and different educated customers, or a masks advisable for most of the people.
***Information are inadequate to exactly outline the period of time that constitutes a protracted publicity. Suggestions range on the size of time of publicity, however 15 minutes of shut publicity can be utilized as an operational definition. Temporary interactions are much less more likely to end in transmission; nevertheless, signs and the kind of interplay (e.g., did the contaminated individual cough instantly into the face of the uncovered particular person) stay necessary.
Integration of those definitions and actions into communications and actions of public well being authorities may be guided by CDC’s “Implementation of Mitigation Methods for Communities with Native COVID-19 Transmissionpdf icon”