搜尋結果
6 天前 · As of 7 July 2021, CoronaVac is the most widely used COVID-19 vaccine in the world, with 943 million doses delivered globally. [39] In July, Sinovac signed advanced purchase agreements with GAVI to supply COVAX with 50 million doses in the third quarter of 2021 and up to a total of 380 million doses by the first half of 2022.
2 天前 · Vaccine hesitancy is a delay in acceptance, or refusal, of vaccines despite the availability of vaccine services and supporting evidence. The term covers refusals to vaccinate, delaying vaccines, accepting vaccines but remaining uncertain about their use, or using certain vaccines but not others. [1][2][3][4] Although adverse effects associated ...
1 天前 · This is a list of the largest known epidemics and pandemics caused by an infectious disease in humans. Widespread non-communicable diseases such as cardiovascular disease and cancer are not included.
2 天前 · Peru, [e] officially the Republic of Peru, [f] is a country in western South America.It is bordered in the north by Ecuador and Colombia, in the east by Brazil, in the southeast by Bolivia, in the south by Chile, and in the south and west by the Pacific Ocean.Peru is a megadiverse country with habitats ranging from the arid plains of the Pacific coastal region in the west to the peaks of the ...
2 天前 · Amazon.com, Inc.,[1] doing business as Amazon (/ˈæməzɒn/, AM-ə-zon; UK also /ˈæməzən/, AM-ə-zən), is an American multinational technology company, engaged in e-commerce, cloud computing, online advertising, digital streaming, and artificial intelligence.[5] It is considered one of the Big Five American technology companies; the ...
1 天前 · South Korea, [c] officially the Republic of Korea (ROK), [d] is a country in East Asia.It constitutes the southern part of the Korean Peninsula and borders North Korea along the Korean Demilitarized Zone; though it also claims the land border with China and Russia.[e] The country's western border is formed by the Yellow Sea, while its eastern border is defined by the Sea of Japan.
20 小時前 · 2024. 2028 →. v. t. e. The 2024 United States presidential debates are a series of debates held before the 2024 presidential election. The first general election debate between the major candidates was sponsored by CNN and attended by then-presumptive Democratic nominee Joe Biden and presumptive Republican nominee Donald Trump on June 27, 2024.
