Investors sought safety once again on Thursday, flocking to the safe-haven US dollar and Japanese yen and selling almost everything else.As we thought that it would, the sharp increase in COVID-19 cases in Europe has finally begun to be reflected in a more meaningful way in FX so far this week. The dollar is on course for its best weekly performance in a month, while the euro is back hovering around its lowest level since late-September as rising virus numbers are causing authorities in Europe to announce fresh lockdown restrictions by the day. London is set to enter into the UK government’s tier-2 restrictions at midnight tonight, with a number of other major cities in the north of England poised to enter into the tier-3 bracket, where hospitality and leisure venues are closed and gatherings of people are severely restricted. France has also imposed a 21:00-06:00 curfew in nine cities this week, including the capital Paris. The main concern here for investors is the impact that these restrictions will have on the global economic recovery. We see a slowdown in growth in Europe in the fourth quarter of the year as almost inevitable, with the length and severity of future measures now key as to whether or not we see a double-dip recession.Next Friday’s European flash PMI data for October is now likely to take on added importance and will be the first major piece of economic news covering the period of significantly tighter restrictions. In the meantime, investors may take their cue from this afternoon’s US retail sales data for September.