Diseases, Conditions, Syndromes

Delta variant challenges China's costly lockdown strategy

The delta variant is challenging China's costly strategy of isolating cities, prompting warnings that Chinese leaders who were confident they could keep the coronavirus out of the country need a less disruptive approach.

Diseases, Conditions, Syndromes

China seals city as its worst virus outbreak in a year grows

China's worst coronavirus outbreak since the start of the pandemic a year and a half ago escalated Wednesday with dozens more cases around the country, the sealing-off of one city and the punishment of its local leaders.

Diseases, Conditions, Syndromes

China mass testing shows virus cases at six-month high

China on Wednesday reported its highest daily number of local coronavirus cases in months as mass testing campaigns uncovered a trail of Delta variant infections, prompting authorities to heavily restrict travel to major ...

City

A city is a relatively large and permanent settlement, particularly a large urban settlement. Although there are no agreed on technical definitions distinguishing a city from a town within general English language meanings, many cities have a particular administrative, legal, or historical status based on local law — for example an article of incorporation approved by the local cognizant (state) legislature separates towns from city government forms, rights, duties and privileges in Massachusetts — similar distinctions are made across the world, particularly in former colonies of the United Kingdom. Historically, in Europe, a city was understood to be an urban settlement with a cathedral; in later usages, especially in the United Kingdom and parts of Commonwealth of Nations, a city was a settlement with a royal charter.

Cities generally have advanced systems for sanitation, utilities, land usage, housing, and transportation and more. This proximity greatly facilitates interaction between people and businesses, benefiting both parties in the process.

A big city, or metropolis, may have suburbs and regions. Such cities are usually associated with metropolitan areas and urban sprawl, creating large numbers of business commuters. Once a city sprawls far enough to reach another city, this region can be deemed a conurbation or megalopolis.

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