Coronavirus disease 2019 (COVID-19), the highly contagious viral illness caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), has had a catastrophic effect on the world's demographics resulting in more than 6 million deaths worldwide as of March 2022, emerging as the most consequential global health crisis since the era of the influenza pandemic of 1918. COVID-19 (coronavirus) Western Australia is working closely with the Commonwealth and state and territory jurisdictional governments to respond appropriately to the coronavirus pandemic. The Government of Western Australia has declared a State of Emergency and a Public Health Emergency (external site) in response to COVID-19. COVID-19 Testing. Due to limited supply, staffing and testing capacity at this time, UW Health is prioritizing COVID-19 testing for those who have symptoms and are potentially at risk of a serious case of COVID-19. If you do not have symptoms (asymptomatic), but are seeking a COVID-19 test, we encourage you to pursue one of the other available. The Covid-19 testing requirements for international cruises vary depending on the departure port, cruise line operator, passengers age and vaccination status. Please consult the Celebrity Cruises "Healthy at Sea" webpage for detailed information about. Coronaviruses are a large family of viruses that cause illnesses ranging from the common cold to more severe diseases such as Severe Acute Respiratory Syndrome (SARS). A new strain of coronavirus, named COVID-19, originated in Wuhan, China in December 2019. Symptoms include fever, coughing and shortness of breath. It was deemed a pandemic by the World Health Organization in March 2020.