Lastly tonight, a preview of the fights ahead here in America this week from protests in Europe over vaccine mandates.
Before Covid-19, Nicolas Rimoldi had never attended a protest.
But somewhere along the pandemic's long and tortuous road, which saw his native Switzerland imposing first one lockdown, then another, and finally introducing vaccination certificates, Rimoldi decided he had had enough.
Now he leads Mass-Voll, one of Europe's largest youth-orientated anti-vaccine passport groups.
Because he has chosen not to get vaccinated, student and part-time supermarket cashier Rimoldi is -- for now, at least -- locked out of much of public life. Without a vaccine certificate, he can no longer complete his degree or work in a grocery store. He is barred from eating in restaurants, attending concerts or going to the gym.
"People without a certificate like me, we're not a part of society anymore," he said. "We're excluded. We're like less valuable humans."
As the pandemic has moved into its third year, and the Omicron variant has sparked a new wave of cases, governments around the world are still grappling with the challenge of bringing the virus under control. Vaccines, one of the most powerful weapons in their armories, have been available for a year but a small, vocal minority of people -- such as Rimoldi -- will not take them.
Faced with lingering pockets of vaccine hesitancy, or outright refusal, many nations are imposing ever stricter rules and restrictions on unvaccinated people, effectively making their lives more difficult in an effort to convince them to get their shots.
In doing so, they are testing the boundary between public health and civil liberties -- and heightening tensions between those who are vaccinated and those who are not.
As controls have tightened, groups such as Rimoldi's have become increasingly disruptive; few weekends now pass without loud protests in European cities. And anger at restrictive Covid measures has led many who previously considered themselves apolitical to join in.
Even before the pandemic, vaccine hesitancy in Europe was strongly correlated to a populist distrust of mainstream parties and governments. One study published in the European Journal of Public Health in 2019 found "a highly significant positive association between the percentage of people in a country who voted for populist parties and the percentage who believe that vaccines are not important and not effective."
But leaders of anti-restriction movements are presenting their campaigns as more inclusive and representative than those studies would suggest.
"We have farmers, lawyers, artists, musicians -- the whole range of people you can imagine," Rimoldi said. Mass-Voll is aimed specifically at Swiss young people, and boasts that it has amassed more followers on Instagram than the official youth wings of any of the country's major political parties.
Christian Fiala, the vice president of Austria's MFG party, which was formed specifically to oppose lockdowns, mask-wearing and Covid passports, told CNN: "It's really a movement which comes from the whole population."
The Vienna rally was organized by the far-right Freedom Party, the third biggest political party in Austria, which experts say has used the pandemic to further its anti-establishment credentials and re-establish public support after a high-profile scandal.
“STOPP Impffaschismus,” (stop vaccine fascism) one sign in Vienna read. “Kontrolliert die Grenze, nicht euer volk,” (control the border, not your people) another said — just some of the slogans mixing vaccine skepticism with right-wing ideology.
At least one “Q” sign was on display in Vienna, signaling support for QAnon, the outlandish conspiracy theory associated with some supporters of former President Donald Trump and some participants in the Jan. 6 Capitol attack.
Similar protests and signs could be seen in Belgium, the Netherlands, Italy, Germany and Croatia.
Freedom Party Chairman Herbert Kickl has championed the anti-vaccine movement in Austria. Kickl himself tested positive for Covid in the days before Saturday’s rally, forcing him to stay home.
“He has politically mobilized against the Covid-19 vaccines,” said Katharina T. Paul, an expert on vaccine hesitancy at the University of Vienna. “He has disseminated misinformation, to put it mildly.”
“I think he and the Freedom Party play a significant role in the mobilization of the politicalization of the vaccine,” she added. “What’s particular about Austria, especially recently, is the relationship between populism on the one hand and vaccine hesitancy on the other. This is not specific to Austria — we’ve seen it in Italy and France — but Austria does stand out.”
Austria has a long history of vaccine hesitancy, but what’s happening now is unprecedented, Paul said.