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As COVID-19 vaccines have leapfrogged development phases, stringent temperature requirements (up to -80 C) are likely to be imposed for certain vaccines to ensure the effectiveness of the vaccines during transportation and warehousing. This poses logistics challenges to the existing medical supply chain, which conventionally distributes vaccines at 2-8 C.

Apple closed its stores in China and didn't reopen them until March. As the coronavirus spread, Apple closed stores around the world. As a result, Apple faced three problems in the quarter: supply constraints, sales outlets closure and a sharp reduction in demand as shelter-in-place orders took effect in its markets.

As China's economy moves to higher-value-added products, and because workers' wages have risen rapidly over the past 10 years, many low-wage manufacturers - especially in the textile and garment industries - are considering moving production to Africa.

Apple's warning that its revenue may be lower than expected due to the coronavirus outbreak in China was a factor in the Dow Jones Industrial Average falling Tuesday.

Around 3.30 pm, a large group of protesters proceeded eastward and westward, blocking carriageways in Sai Ying Pun and Causeway Bay respectively. Protesters in Causeway Bay also destroyed government property and created road blocks. Traffic in a number of areas on Hong Kong Island was disrupted as a result, according to the press release.