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Anti-dumping and anti-subsidy duties on white-feathered broiler chickens from the United States have been removed from Tuesday, said the Ministry of Commerce.

Antibodies are produced by the immune system when the body is invaded by a virus. Scientists hope to use the test to estimate the extent of COVID-19 infections, because there is a report that 30 to 50 percent of infected populations have zero or minor symptoms, and there has been a shortage of tests in many places.

Another 15 million doses would be acquired by January, contingent on validating all the procedures of national and international regulations, said Bonelli, adding that the maximum term for applying the vaccine would be the Southern Hemisphere winter of 2021.

Antelope Valley Transit Authority (AVTA) in Los Angeles county, one of the company's clients, estimates electrifying all its buses could save more than million over the lifetime of a new fleet, equivalent to approximately ,000 per bus annually, compared to a diesel one.

Another US carmaker GM is working on zero-cobalt batteries, solid state electrolytes and ultra-fast charging. The company is "almost there" on million-mile products, which will be more advanced than the new Ultium battery it unveiled in March, said GM Executive Vice-President Doug Parks.