Statutory notification

Public health management

Important information

  • Infectious agent: novel coronavirus SARS-CoV-2.
  • Transmission: SARS-CoV-2 is spread through respiratory droplets and aerosols, direct physical contact with an infected individual, and indirectly through contaminated objects and surfaces.
  • Incubation period: Estimated 1 to 14 days, usually 5 to 6 days.
  • Infectious period: People are usually infectious from 2 days prior to onset of symptoms, or 2 days prior to first positive test if asymptomatic, until ‘Release from Isolation’ criteria have been met as per the Coronavirus (COVID-19), CDNA National Guidelines for Public Health Units (external site).
  • Signs and symptoms: Generally acute respiratory symptoms including cough, difficulty breathing, sore throat, and runny nose/nasal congestion. Other symptoms may include fever, headaches, myalgia, nausea vomiting or diarrhoea. Loss of smell and taste can occur but is less common with the current variant of the disease.
  • Case exclusion: Contacts should get tested and avoid high-risk settings if symptomatic. 
  • Contact exclusion: Contacts should get tested as per existing protocols (external site). Contacts should avoid high-risk settings as per existing protocols (external site).
  • Treatment: Generally bed rest and symptomatic treatment. Antiviral treatment is available. Although rare, severe disease requiring hospitalisation may occur.
  • Immunisation: Vaccine-preventable disease (see COVID-19 immunisation and the HealthyWA COVID-19 vaccine page).Specific businesses and/or professions may require their staff and visitors to be vaccinated against COVID-19.
  • Case follow-up: With the current variant of disease, public health action focuses on outbreaks in high-risk settings such as residential aged care facilities.


Notifiable disease data and reports

Further information

Last reviewed: 08-09-2022
Produced by

Public Health