"If there is such a loss of confidence in certain vaccines, then the government needs to order a third dose and free up the capacities for giving them," Budapest Deputy Mayor Ambrus Kiss said.
Scientists observed 17-month-old children as they watched puppet shows featuring a protagonist, villain and victim.
Surveillance video emerges of the moment the Viking Sigyn cruise ship collides with the Mermaid tourist boat on Budapest's Danube River in Hungary, killing many people.
An estimated 70,000 people joined the demonstration, which was among the largest anti-government protests during Orban's seven years as prime minister.
Budapest could send troops to stop refugees crossing from Serbia.
Thousands of Europeans decide to play a part in the greatest refugee crisis since World War II.
The buses will pick up thousands of migrants at the railway and 1,200 who are walking along the motorway.
Riot police attempted to move the asylum seekers to an overcrowded facility near the town of Biscke.
Trains to western Europe however have reportedly been suspended "indefinitely".
Germany is expecting 800,000 asylum seekers by the end of the year.
Putin has not been on a bilateral visit to a European Union state since June last year.
Hungary's Foreign Ministry summoned the U.S. envoy on Wednesday after U.S. Senator John McCain called Prime Minister Viktor Orban a "neo-fascist dictator."
With Hungary's conservative prime minister enjoying solid support, Hungarians who united against his plan to tax the internet believe they could form a solid new opposition
The Prime Minister Viktor Orban said on Friaday that the country will revisit regulating and taxing money online next year, but for now there will be no internet tax
Thousands took to the streets Sunday to protest the proposed tax on Internet use, calling it one more step in a long line of "alarming anti-democratic measures"
Hungarian PM Viktor Orban's remarks have caused outrage and led to claims of 'Putinisation'