VIENNA (Reuters) - Austria on Saturday announced a nighttime curfew and the closure of cafes, bars and restaurants to all but take-away service as a surge in coronavirus infections threatens to overwhelm its hospitals.The Alpine country had a swift and effective lockdown during its first wave of infections in March but had held off similar action this month to help the economy, even as daily cases rose to several times the spring peak. With daily infections at a record 5,627 on Friday, however - just short of the 6,000 level at which the government says hospitals will no longer cope - the conservative-led government was forced to act. “We did not take this decision lightly but it is necessary,” Chancellor Sebastian Kurz told a news conference. The restrictions include an 8 p.m. to 6 a.m. curfew and will be in effect from Tuesday until the end of November. Factories, shops, kindergartens and primary schools will remain open, however, while secondary schools and universities will switch to distance learning. Exercise or walks will still be allowed after curfew.