“‘What are you doing differently?’ they ask me,” he said. “‘Why is your death rate so low?’”

There are several answers experts say, a mix of statistical distortions and very real differences in how the country has taken on the epidemic.

The average age of those infected is lower in Germany than in many other countries. Many of the early patients caught the virus in Austrian and Italian ski resorts and were relatively young and healthy, Professor Kräusslich said.

“It started as an epidemic of skiers,” he said.

As infections have spread, more older people have been hit and the death rate, only 0.2 percent two weeks ago, has risen, too. But the average age of contracting the disease remains relatively low, at 49. In France, it is 62.5 and in Italy 62, according to their latest national reports.

Another explanation for the low fatality rate is that Germany has been testing far more people than most nations. That means it catches more people with few or no symptoms, increasing the number of known cases, but not the number of fatalities.

“That automatically lowers the death rate on paper,” said Professor Kräusslich.

But there are also significant medical factors that have kept the number of deaths in Germany relatively low, epidemiologists and virologists say, chief among them early and widespread testing and treatment, plenty of intensive care beds and a trusted government whose social distancing guidelines are widely observed.