A major research effort

A major research effort is under way to understand whether Covid-19 can spread through tiny airborne particles that are released by infected people and remain suspended in the air for hours.

Scientists are working alongside sanitary engineers at the World Health Organization to investigate how tiny aerosols bearing the virus may be released into the environment; whether they are spread around rooms by air-conditioning units; and how infectious the particles may be.

Key impeachment witness Alexander Vindman announced his retirement from the army by citing “intimidation” led by Mr Trump. ”The president of the United States attempted to force Lieutenant Colonel Vindman to choose: Between adhering to the law or pleasing a president,” Colonel Vindman’s lawyer said.

Mexican President Andres Manuel Lopez Obrador shared a picture of himself standing in front of the Lincoln Memorial in Washington DC on Wednesday.

“We are empty… we have no more tears.”

The bus driver was close to retirement and leaves behind three daughters aged 18, 21 and 24.

In another sign of their growing co-operation, Russia and China announced that they had agreed to boost joint economic enterprises including in energy and civilian aircraft manufacture after President Xi and President Putin spoke by phone.

Christopher Wray, the FBI director, warned on Tuesday that China was “engaged in a whole-of-state effort to become the world’s only superpower by any means necessary” and presented “the greatest long-term threat to our nation’s information and intellectual property, and to our economic vitality”.

The nation’s confirmed death toll from COVID-19 is the second highest in the world after the United States.

‘No country in the world did it like Brazil,’ Bolsonaro said.