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What is Contact Tracing?Contact tracing is the process of identification of persons who may have come into contact with an infected person ("contacts"). By tracing the contacts of infected individuals, testing them for infection, treating the infected and tracing their
contacts in turn, public health aims to reduce infections in the population. Diseases for which contact tracing is commonly performed for include tuberculosis, vaccine-preventable infections like measles, sexually transmitted infections (including HIV), blood-borne infections, some serious bacterial infections, and novel infections (e.g. SARS-CoV and SARS-CoV-2).
What is America?The United States of America (USA), commonly known as the United States or America. It is a country comprising 50 states, a federal district, five major self-governing territories, and various possessions. At 3.8 million square miles (9.8 million
km2), the United States is the world's third or fourth largest country by total area and is slightly smaller than the entire continent of Europe's 3.9 million square miles (10.1 million km2). With a population of over 327 million people, the US is the third most populous country.
What is China?China, officially the People's Republic of China (PRC) is a country in East Asia. It is the world's most populous country, with a population of around 1.4 billion in 2019. Covering approximately 9.6 million square kilometres, it is the world's third
or fourth-largest country by area. Governed solely by the Chinese Communist Party (CCP), the state exercises jurisdiction over 22 provinces, five autonomous regions, four direct-controlled municipalities (Beijing, Tianjin, Shanghai, and Chongqing), and the special administrative regions of Hong Kong and Macau. China is a unitary one-party socialist republic, and is one of the few existing nominally socialist states. Political dissidents and human rights groups have denounced and criticized the Chinese government for human rights abuses, including suppression of religious and ethnic minorities, censorship, mass surveillance, and their response to protests, notably in 1989.
What is Woman?A woman is a female human being. The term woman is usually reserved for an adult, with the term girl being the usual term for a female child or adolescent. The term woman is also sometimes used to identify a female human, regardless of age, as in
phrases such as "women's rights". Women with typical genetic development are usually capable of giving birth from puberty until menopause.
