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| Image by analogicus from Pixabay |
在新冠疫情擴散並肆虐全球之際，美國是全世界其中之一走在前頭歷經一波又一波疫情暴風雨的國家，在疫苗、快篩等醫療科技上是研發和製造前沿。
此時，美國的防疫政策措施與醫療科技科學是可作為參考的領先指標、
台灣絕大多數的快篩試劑都是由國外進口，而其中大部分是從美國或南韓進口的。
美國官方政府防疫政策措施摘錄
美國疾病管制及預防中心（Centers for Disease Control and Prevention，CDC）
Live updatesCOVID-19 Testing: What You Need to Know
COVID-19 tests can detect either SARS-CoV-2 or biomarkers of SARS-CoV-2, the virus that causes COVID-19, or antibodies that your body makes after getting COVID-19 or after getting vaccinated.
Testing is very important to help reduce the spread of COVID-19. You should always discuss your test results with your healthcare provider.
● Viral Tests
Tests for virus tell you if you have an present infection with the virus that causes COVID-19. This type of test is called a “viral” test because it looks for viral infection. Antigen tests, Nucleic Acid Amplification Tests (NAATs) and other tests are viral tests.
A viral test tells you if you are infected with SARS-CoV-2, the virus that causes COVID-19, using samples that come from your nose or mouth. There are two types of viral tests: rapid tests and laboratory tests. COVID-19 testing is one of many risk-reduction measures, along with vaccination, masking, and physical distancing, that protect you and others by reducing the chances of spreading COVID-19.
◎ Rapid tests
○ Point-of-Care tests are performed or interpreted by someone other than the individual being tested, can be performed in minutes and can include antigen tests, some NAATs, and other tests.
○ Self-tests are rapid tests that can be taken at home or anywhere, are easy to use, and produce rapid results.
◎ Laboratory tests can take days to complete and include RT-PCR and other types of NAATs.
● Antibody Tests
Tests for antibodies may tell you if you have had a past infection with the virus that causes COVID-19. Your body creates antibodies after getting infected with SARS-CoV-2 or after getting vaccinated against COVID-19. These tests are called “antibody” or “serology” tests.
An antibody test (also known as a serology test) can detect antibodies to SARS-CoV-2 in your blood. Antibodies are proteins that your immune system makes to help fight infection and protect you from getting sick in the future.
Source: 美國疾病管制及預防中心（Centers for Disease Control and Prevention，CDC）
P.S. 美國疾病管制及預防中心 CDC 相當於台灣衛生福利部疾病管制署
閱讀完美國的防疫政策措施，有哪些英文單字和片語是自己不懂或不熟的，可以做筆記。
（在美國防疫政策措施摘錄中，紫色超連結的英文單字為多益考試測驗核心字彙，點擊即可連結至該英文單字的網頁，學習相關語言知識及其用法。）
挑選了２張一目瞭然且簡潔美觀的相關英文資訊圖表（Infographic）供閱覽，上面是由美國科羅拉多州政府公共衛生與生態環境部（Colorado Department of Public Health and Environment）製作，下面是由美國加州洛杉磯郡公共衛生部（Los Angeles County ‧ Department of Public Health）製作。
（點擊資訊圖表即可連結至該資訊圖表的 PDF 文件網頁，可放大清晰閱覽。）
每回閱讀完國際英文新聞時事後，可用一支筆和一張紙或者使用記事本或筆記軟體記錄重要關鍵訊息，思索爬梳整理（中文或英文皆可，可練習應用所學的英文）。
持續從國際英文新聞時事中逐步獲取更充足完整正確的重要關鍵資訊和知識。
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