增加您对 COVID-19 的了解
无论您的年龄或健康状况如何,预防严重的 COVID-19 都是当务之急。全面了解 COVID-19 有助于保护您自己和周围的人。保护自己和周围的人首先从了解 COVID-19 开始。请向医生咨询有关防治COVID-19 的问题,了解如何将更新疫苗接种列入您的日常医疗保健之中,帮助您维持现有生活方式,并降低COVID重症或新冠后遗症的风险。
常见问题
COVID-19 主要通过感染者咳嗽、打喷嚏或说话时的微小呯吸道飞沬传播。16 也可能通过直接接触传播,比如双手接触或握手,以及接触被病毒污染的表面,然后不洗手就摸脸。17
是的,COVID-19 会导致并发症。对于某些人群(尤其是老年人或有基础疾病患者),可能引发严重问题,例如肺炎、18 心脏问题19或慢性病恶化。20 部分康复者可能持续出现疲倦等症状,也称为“长新冠”(或新冠后遗症)。21
预防 COVID-19 的一种方法是及时接种最新疫苗,因为疫苗会针对最新毒株进行迭代。22 以下防护措施也有助于降低感染和传播病毒的风险:勤洗手;在人群密集场所佩戴口罩;身体不适时居家休息。23
上一季的 COVID-19 疫苗是针对当时常见的毒株设计的。24,26 本季的疫苗经过更新,能更好地抵御当前流行的变异毒株。25 这有助于提高免疫力,更好地防止感染新毒株 。24,26
COVID-19 和流感的症状相似,但这两种感染是由不同的病毒引起的。要识别病毒并将其区分开来,需要进行专门的检测。27 详情请向医务人员咨询。
可以,二者可以同时接种。28 两种疫苗分开注射,不能混合在同一注射器中。29 两种疫苗可以接种在同侧手臂(不同注射部位)或不同侧手臂。在一次就诊中接种两种疫苗,更便于同时预防两种疾病。30
接种疫苗后,可能会出现轻微副作用,例如手臂疼痛、疲倦、头痛或发烧,通常会在几天内消退。休息、补充水分以及使用止痛药或退烧药有助于缓解不适。如出现皮疹、胸痛或呼吸急促,建议立即就医。22
可以。虽然初始疫苗接种 (primary doses) 必须是同一品牌的,但随后的 COVID-19 疫苗可以选择不同的品牌和成分。31 研究表明,这种接种方式可能会增强免疫反应。32
- Centers for Disease Control and Prevention. People 65 Years and Older: Flu and High-Risk [Internet]. Atlanta (GA): CDC; Sept 5, 2024 [cited 2025 Sep 24]. Available from: https://www.cdc.gov/flu/highrisk/65over.htm
- Centers for Disease Control and Prevention. Risk Factors for Severe COVID-19 [Internet]. Atlanta (GA): CDC; [last updated unknown] [cited 2025 Sep 24]. Available from: https://www.cdc.gov/covid/riskfactors/index.html
- Centers for Disease Control and Prevention. Getting a Flu Vaccine and Other Recommended Vaccines at the Same Time [Internet]. Atlanta (GA): CDC; Sept 17, 2024 [cited 2025 Sep 24]. Available from: https://www.cdc.gov/flu/vaccines/coadministration
- Ministry of Finance. 2022. Assessment of the Impact of Key COVID-19 Budget Measures. https://www.mof.gov.sg/news-publications/featured-reports
- Ministry of Health Singapore. COVID-19 National Vaccination Programme. 2025, October 24. https://www.moh.gov.sg/seeking-healthcare/overview-of-diseases/covid-19-national-vaccination-programme/
- Ministry of Health Singapore. 2022, September. Report on excess mortality during the COVID-19 pandemic up to June 2022. https://www.moh.gov.sg/others/resources-and-statistics/report-on-excess-mortality-during-covid-19
- Kuang S, et al. 2023, December 8. Experiences of Canadians with long-term symptoms following COVID-19. Statistics Canada. December 2023. https://publications.gc.ca/site/eng/9.931251/publication.html
- CDC. (2025, March 10). Symptoms of COVID-19. https://www.cdc.gov/covid/signs-symptoms/index.html
- Ministry of Health. (2024, July 2). Status of COVID-19 Vaccination Among Singaporeans and Reasons for Not Taking Additional Booster Shots. https://www.moh.gov.sg/newsroom/status-of-covid-19-vaccination-among-singaporeans-and-reasons-for-not-taking-additional-booster-shots
- Data.gov.sg. (2024, June 6). Average daily hospitalised / ICU cases by Epi-week. URL: https://beta.data.gov.sg/ Search field: number of covid-19 infections by epi-week.
- Low L, L, et al. 2019, November 3. Epidemiologic Characteristics of Multimorbidity and Sociodemographic Factors Associated With Multimorbidity in a Rapidly Aging Asian Country. JAMA Network Open. 2019;2(11):e1915245. doi:10.1001/jamanetworkopen.2019.15245 (Reprinted)
- Moghadas, S.M. (2021, January 30). The Impact of Vaccination on Coronavirus Disease 2019 (COVID-19) Outbreaks in the United States. Clinical Infectious Disease. 2021;73(12):2257–64. https://doi.org/10.1093/cid/ciab079
- CDC. 2025, February 6. Underlying Conditions and the Higher Risk for Severe COVID-19. https://www.cdc.gov/covid/hcp/clinical-care/underlying-conditions.html
- World Health Organization. (2025, May 15). Statement on the antigen composition of COVID-19 vaccines. Available at: https://www.who.int/news/item/15-05-2025-statement-on-the-antigen-composition-of-covid-19-vaccines
- Ask.gov.sg. Can I receive other non-COVID-19 vaccines around the same time as the COVID-19 vaccine? https://ask.gov.sg/psq/post/can-i-receive-other-non-covid19-vaccines...
- CDC COVID-19. About COVID-19. Atlanta (GA): Center for Disease Control and Prevention; 2024 Jun 13 [cited 2025 Sep 24]. Available from: https://www.cdc.gov/covid/about/index.html
- World Health Organization. Coronavirus disease (COVID-19) Internet. Geneva: World Health Organization; [cited 2025 Sep 24]. Available from: https://www.who.int/health-topics/coronavirus#tab=tab_1
- Ufuk F, Savaş R. COVID-19 pneumonia: lessons learned, challenges, and preparing for the future. Diagn Interv Radiol. 2022 Nov;28(6):576-585. doi:10.5152/dir.2022.221881. PMID: 36550758; PMCID: PMC9885718.
- Hilser, J. R., et al. (2024, Oct 9). COVID-19 Is a Coronary Artery Disease Risk Equivalent and Exhibits a Genetic Interaction With ABO Blood Type. Arteriosclerosis, thrombosis, and vascular biology, 44(11), 2321–2333. https://doi.org/10.1161/ATVBAHA.124.321001
- Suri, C.,et al. (2024, October 8). Interplay between Lung Diseases and Viral Infections: A Comprehensive Review. Microorganisms, 12(10), 2030. https://doi.org/10.3390/microorganisms12102030
- Berends, M. S., et al. (2025, July). Impact of pre-existing comorbidities and multimorbidities, demography and viral variants on post-acute sequelae of COVID-19 (‘Long COVID’) in Dutch primary care: A retrospective cohort study. International Journal of Infectious Diseases, 156, Article 107912. https://doi.org/10.1016/j.ijid.2025.107912
- World Health Organization. COVID-19 vaccines: advice [Internet]. Geneva: WHO; last updated October 8, 2024 [cited 2025 Sep 24]. Available from: https://www.who.int/emergencies/diseases/novel-coronavirus-2019/covid-19-vaccines/advice
- Communicable Diseases Agency. COVID-19. Singapore: Government of Singapore; last updated 18 September 2025 [cited 2025 Sep 24]. Available from: https://www.cda.gov.sg/public/diseases/covid-19
- World Health Organization. Statement on the antigen composition of COVID-19 vaccines [Internet]. Geneva: WHO; 15 May 2025 [cited 2025 Sep 24]. Available from: https://www.who.int/news/item/15-05-2025-statement-on-the-antigen-composition-of-covid-19-vaccines
- European Medicines Agency. ETF recommends updating COVID-19 vaccines to target new LPB.1 variant [Internet]. Amsterdam: EMA; 2025 May 16 [cited 2025 Sep 24]. Available from: https://www.ema.europa.eu/en/news/etf-recommends-updating-covid-19-vaccines-target-new-lpb1-variant
- U.S. Food and Drug Administration. COVID-19 Vaccines 2025–2026 formula for use in the United States beginning Fall 2025 [Internet]. Silver Spring (MD): FDA; [last updated date unknown] [cited 2025 Sep 24]. Available from: https://www.fda.gov/vaccines-blood-biologics/industry-biologics/covid-19-vaccines-2025-2026-formula-use-united-states-beginning-fall-2025
- Centers for Disease Control and Prevention. Similarities and Differences between Flu and COVID-19 [Internet]. Atlanta (GA): CDC; 2024 Sept 17 [cited 2025 Sep 24]. Available from: https://www.cdc.gov/flu/about/flu-vs-covid19.htm
- Naficy, A., et al. (2024, Mar 21). No immunological interference or concerns about safety when seasonal quadrivalent influenza vaccine is co-administered with a COVID-19 mRNA-1273 booster vaccine in adults: A randomized trial. Human vaccines & immunotherapeutics, 20(1), 2327736. https://doi.org/10.1080/21645515.2024.2327736
- Immunize.org. How to Administer Multiple Intramuscular Vaccines to Adults During One Visit [Internet]. Immunize.org; December 4, 2023 [cited 2025 Sep 24]. Available from: https://www.immunize.org/wp-content/uploads/catlg/c2030.pdf
- World Health Organization. [Title unknown – WHO document IRIS handle 10665/346897] [Internet]. Geneva: WHO; [publication date unknown] [cited 2025 Sep 24]. Available from: https://iris.who.int/handle/10665/346897
- Ministry of Health. Can I receive other brands of the same vaccine doses of the same brand? [Internet]. Updated 11 mo ago [cited 2025 Sep 24]. Available from: https://www.moh.gov.sg/psq/post/can-i-receive-other-brands-of-the-same-vaccine-doses-of-the-same-brand?from=topics
- Poh X.Y., et al. (2022, May 11). Antibody Response of Heterologous vs Homologous Messenger RNA Vaccine Boosters Against the Severe Acute Respiratory Syndrome Coronavirus 2 Omicron Variant: Interim Results from the PRIBIVAC Study, a Randomized Clinical Trial. Clin Infect Dis. 2022;75(12):2088-2096. doi:10.1093/cid/ciac345
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