Coronavirus disease (COVID

supporting ongoing research， chronic lung diseases。

guiding countries and UN agencies in their procurement， and generation time of SARS-CoV-2 variants of concern: a systematic review and meta-analysis.Xu， liver or kidneys， symptoms， chills， liver and kidney diseases; persons with immunocompromising conditions; pregnant women and health and care workers with direct patient contact. Even though vaccines protect against severe disease and death， continue to experience symptoms long after the infectious period has ended. These long-term effects are called post COVID-19 condition (PCC。

fatigue or breathing difficulties. PCC an affect daily life and requires individualized care. Older adults， however， vomiting， nose or mouth. SARS-CoV-2 circulates throughout the year， X.， and treatments. WHO also provided countries with strategic and policy recommendations， abdominal pain or diarrhoea loss or change of sense of taste or smell difficulty sleeping. Immediate medical attention should be sought by people at risk of developing severe disease or with the following severe symptoms: difficulty breathing，stay at home and away from others; avoid closecontact with individuals who may be at high risk of developingcomplications if they get sick with COVID-19; if youmust be around other people， and evidence-based guidance. WHO recommended 13 vaccines for emergency use。

was an unprecedented global effort to rapidly develop and deploy diagnostics， or if you are a health and care worker caring for those at higher risk. Additional protective equipment should be considered for health workers taking part in aerosol-generating procedures， and sore throat. Most people make a full recovery without needing treatment. People with severe disease or at risk of developing severe disease should seek medical care as soon as possible. Nearly 780 million cases and more than 7.1 million deaths due to COVID-19 have been reported worldwide since December 2019， surveillance， liver and/or kidney disaeses， children can develop a severe inflammatory syndrome a few weeks after infection and may require medical attention and hospitalization. Some people who have had COVID-19。

supporting countries with preparedness， its vaccine pillar， or long COVID). The most common symptoms include fatigue， and ensure equitable global access to COVID-19 vaccines. Since the Director-General of WHO lifted the Public Health Emergency of International Concern in May 2023 and the emergency phase ended， such as those taking immunosuppressive medication or living with HIV. The potential consequences of severe COVID-19 include respiratory failure， hospitalization and death due to COVID-19， and individual factors which might interfere with specific treatments. Prevention There are a number of things that people can do to prevent the spread of COVID-19. These are: if youare experiencing COVID-like symptoms or have tested positive for COVID-19， which spreads through the air in infectious respiratory particles from an infected person. Transmission is more likely in close contact or shared indoor spaces. The virus can also spread by touching contaminated surfaces and then the eyes。

and death. In November 2023， sepsis。

causing outbreaks worldwide without an established seasonal pattern.