Brazil asks women ‘if possible’ to delay pregnancy over Covid variants

• Doctors close in on cause of blood clots potentially linked with vaccines
• Trudeau warns Canada faces third wave
• US made little progress in preventing more Covid-19 deaths, experts say• Doctors close in on cause of blood clots potentially linked with vaccines
• Trudeau warns Canada faces third wave
• US made little progress in preventing more Covid-19 deaths, experts say