4/28/2023 0 Comments Pneumonia x ray findings![]() The signs and symptoms of COVID-19 are non-specific and cannot be clinically distinguished from other viral respiratory infections, though the development of dyspnoea several days after the onset of symptoms is suggestive of COVID-19. In symptomatic individuals, COVID-19 typically presents with systemic and/or respiratory symptoms, although here have also been reports of gastrointestinal, cardiovascular and, less commonly, dermatological and neurological symptoms. 6 A review of the scientific literature estimated the proportion of asymptomatic patients at 30–40%. In many cases, SARS-CoV-2 infection is asymptomatic. This update features a compendium of the most significant findings in radiological diagnosis of COVID-19. The novelty of the disease and the initial lack of knowledge about it spurred huge amounts of scientific output in biomedical journals. 5 Although it can occur at any age, it is most common in middle-aged and elderly male adults. Infection generally occurs within 14 days of exposure and in most cases within 4–5 days. 3 Currently, other routes of transmission such as faecal-oral, sexual, blood and vertical transmission are not well understood. 2 Contaminated droplets deposited on objects can facilitate transmission of the virus. The infection is transmitted predominantly through contact with droplets of secretions from the upper respiratory tract of infected individuals. In late October 2020, the number of confirmed cases of COVID-19 worldwide reached 46 million, and the death toll exceeded 1,140,000. The rapid international spread of the virus has had enormous social, economic and health repercussions and has forced the adoption of extraordinary social confinement measures to halt its dissemination, as well as the structuring of healthcare to prevent its collapse. It was officially recognised as a pandemic by the World Health Organization (WHO) on 11 March 2020. From there, it quickly spread to virtually the entire world. The first cases were seen in Wuhan, China, in late December 2019. ![]() Coronavirus disease 2019 (COVID-19) is an infectious disease caused by a coronavirus strain called severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2).
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |