![Pfizer and BioNTech announced Thursday the drugmakers were working on a booster shot against the Delta variant, planning to do clinical trials in August.](https://img.asmedia.epimg.net/resizer/v2/DZXF6M2CERNRFDEJRTQ236YMFQ.jpg?auth=fd58988d7363313887b1686db29b07ae0fc8a6e0ea4a66bd9130b8e645f3d2a2&width=360&height=203&smart=true)
So, it's all set to start today...the delayed Euro 2020 tournament will finally kick-off in Rome tonight.
ByAlfredo Relaño
![](https://img.asmedia.epimg.net/resizer/v2/https%3A%2F%2Fs3.amazonaws.com%2Farc-authors%2Fdiarioas%2F413418ce-c9d2-4217-8476-e81fdd6457d6.png?auth=a386e1ed72d82ef38a3aefc25d17b384e452618ae3dfd741d3d99ce0750ae6f6&width=200&height=84&smart=true)
![A lost vaccination card or simple mix-up at a pharmacy… there are a few ways you could end up with two doses of two different vaccines, but should you be concerned?](https://img.asmedia.epimg.net/resizer/v2/QS4G3G3JCNKPVGXPQEVURBDC7I.jpg?auth=a8819518ef033e85d71e2266edac95cdbf056fb50dcb68e09fd380d29decfd1e&width=360&height=203&smart=true)
Coronavirus
Can you mix covid-19 vaccines? Is it safe?
Maite Knorr-Evans
So, it's all set to start today...the delayed Euro 2020 tournament will finally kick-off in Rome tonight.
Coronavirus