Macron, who shook up his agenda this week to focus on efforts to contain the outbreak, said on a visit to an old people's home that they were by far the most vulnerable to its effects.
"Our absolute priority is to protect the people who are the most fragile in the face of this virus," Macron said.
‘Heartbreaking’ decision
"The nation is behind our old... during this epidemic and we need to limit our visits as much as we can," he said.
He admitted this could prove "heartbreaking" at times but said the measure was simply one of common sense.
He emphasised that young people should not be visiting the old because "as we know, they (the young) transmit the virus a lot".
Those who died in France so far have been old with pre-existing conditions.
Macron said that the situation was likely to last several weeks and that people should show the "spirit of responsibility" without giving in to panic.
The health ministry said its priority was to slow the spread of the virus to limit the effects for the population when the peak of the virus is reached.
"People who are old are more at risk and should be protected," the ministry added.
Haut Rhin hit
One of the worst-hit regions in France is the Haut-Rhin in the east, where the number of cases jumped eightfold inside eight hours to 81, according to local officials.
The senior state official for the region, Laurent Touvet, announced a series of measures including closing some schools and banning gatherings of more than 50 people.
Some of the cases in Haut-Rhin have been traced to a meeting of an evangelical church from February 17 to 24 in the city of Mulhouse, attended by some 2,000 people.
Several participants have tested positive, including five who later flew to France's Latin American overseas department of French Guiana and began showing symptoms there.
The health ministry said late Friday that 39 people were seriously ill in France with the virus after 190 new cases emerged over 24 hours, taking the overall confirmed nationwide total to 613.
Of the nine fatalities to date, six were aged over 70. Most of those who have died were already suffering from other ailments.
Daily news briefReceive essential international news every morning
Subscribe
