The emergence of new outbreaks in Europe is sparking debate about the pace of removal of blockades in many countries.
In Germany, more than 100 people were confirmed to be infected with nCoV after a church ceremony in Frankfurt and dozens of others were positive for the virus after the opening of a restaurant in the northern town of Leer.
In the Netherlands, more than 140 cases of nCoV were recorded among employees at an industrial abattoir in the town of Groenlo.
European governments are facing pressure to lift the restraining measures to prevent the remaining nCoVs to revive the economy, especially in sectors severely affected by diseases such as tourism and hotels.
But new outbreaks have shown the risk of a second wave of infection lurking amid European governments as they gradually reopen the economy.
New infections have raised concerns about limited removal rates in parts of Germany.
Thuringia state in east Germany last week said it would lift all restrictions starting June 6.
Markus Söder, the Bavarian governor, bordering Thuringia, said the statement from Thuringia was transmitting danger signals and urged the neighboring state government to reconsider its decision.
Karl Lauterbach, epidemiologist and Social Democratic congressman, emphasizes wearing masks and keeping distance is still a key preventive measure.
One person who was confirmed positive for nCoV after attending the restaurant opening ceremony was the executive director of Meyer Werft GmbH, the local shipbuilding company.
The head of the county where the restaurant was infected with nCoV said the attendees of the opening event did not comply with community segregation rules.
Churches in Germany have been allowed to open the door provided that churchgoers are separated from the community and wear masks, and do not organize choir.
The church where the outbreak in Germany did not comment.
A spokesman for Chancellor Merkel emphasized that what happened at the church and restaurant showed that "things can get worse very quickly when basic epidemic regulations are ignored."
In Berlin, where bars and restaurants reopened earlier this month, authorities said the rate of virus infection had increased from less than 1 to 1.37, meaning that about 3 people infected with nCoV would infect 4
Premier Thuringia Bodo Ramelow defended the decision to lift restrictive measures, insisting people would remain vigilant even if they were not bound by the rule of law.