DUBLIN (Reuters) - An unexpected 10% rise in the five-day moving average of new COVID-19 cases in Ireland threatens to reverse a recent sharp drop in the incidence rate of the disease to the third-lowest level in Europe, the country’s chief medical officer said on Saturday. Ireland was among the first European countries to reimpose tough nationwide measures last month to curb the spread of the new coronavirus, with restrictions on travel and the closure of non-essential retail more than halving the 14-day infection rate to 130 cases per 100,000 people.