Bacteria makes a dengue ‘stop sign’ in mosquitoes

Bacteria makes a dengue ‘stop sign’ in mosquitoes

Infecting mosquitoes with Wolbachia bacteria has reduced the insect’s ability to spread dengue fever by 77% in a trial, scientists have said. The Wolbachia bacteria persists in the mosquito population meaning the intervention only has to be done once to give a community protection from dengue for many years, the lead researcher on the project,…

US-Mexico: ‘Both sides trying to work out relationship’

US-Mexico: ‘Both sides trying to work out relationship’

US Vice-President Kamala Harris is due to hold talks with Mexico’s President Andrés Manuel López Obrador on Tuesday. Andrew Selee, president of the Migration Policy Institute told BBC World News he thought both sides would be trying to figure out what the framework was going to be for a new relationship. “When Donald Trump was…

Covid-19 and travel restrictions: Your questions answered

Covid-19 and travel restrictions: Your questions answered

The coronavirus pandemic continues to mean severe travel restrictions around the world – but the rules are changing all the time. Clive Wratten, chief executive of the Business Travel Association, and Tiffany Smith, founder of the Love of Food and Travel, blog answer questions from BBC World News viewers about the latest regulations.