The worst floods in 175 years have receded in Prague, but the damage is still being assessed and the cleanup will take weeks. Floods did not inundate Prague’s Old Town but water seeped into the foundations and basements. Officials sealed off parts of the low-lying Karlin district because buildings were in danger of collapsing as the waters receded. Officials worry that diseases such as hepatitis could occur because sewage flowed into the floodwaters. Travel to Prague should be avoided until at least mid-September to give the city time to get services up and running again.