There have been no positive cases from more than 4,000 coronavirus tests carried out on Formula One personnel over the past seven days, F1 said on Saturday.
A 55-year-old woman who worked at the Zürich zoo was attacked and killed by a Siberian tiger. An investigation into the incident is ongoing.
The anti-government rally was joined by League's allies Brothers of Italy and Forza Italia.
The Nobel Prize museum in Stockholm has reopened for the first time since March with a new exhibition called "Contagious" that focuses on pandemics.
Around 17 people, including journalists, were detained after protesting against criminal charges faced by Russian journalist Svetlana Prokopyeva.