
The tech giant said in between April and June, the channels were removed 'as part of our ongoing investigation into coordinated influence operations linked to China'.
AZD1222, that is jointly developed by AstraZeneca and Oxford Univesity, is one of the frontrunners in COVID-19 vaccine race
He said: "By 2060, climate change could be just as deadly as COVID-19, and by 2100 it could be five times as deadly."

The incident took place on July 31 at the Gipsoteca Antonio Canova museum located in Possagno, Italy.
In July alone, his net worth more than doubled, which is the fastest among the world's 500 richest people, and jumped by $14.3 billion in 2019
Macron inspected the 460 feet wide crater caused by the blast and visited the devastated pharmacy as people converged on the French president on all sides asking for help.
TikTok expects the Ireland data centre to be operational by 2022.
Authorities had said on Wednesday that at least 300,000 were left homeless due to the blasts with estimated damage to property worth $3 billion to $5 billion.
Zhang Yuhuan,a villager from the county of Jinxian in the provincial capital of Nanchang, was arrested 9,778 days ago on the charge of murderingtwo boys.
Canada's relations with China has been on the boil ever since authorities arrested Huawei executive Meng Wanzhouon a US warrant in December 2018.