(Reuters) - World markets started shrugging off the worst of the coronavirus impact last week and stock markets have since reached record highs. China's announcement that new cases of the so-called COVID-19 detected on Tuesday were at their lowest since Jan 30 has only consolidated those gains.Here are some factors to watch in coming days:HAS THE OUTBREAK PEAKED?In short, no one can say. Disease epidemic models include factors such as the number of known infections, time passed, frequency of..