HONG KONG — As a dangerous new coronavirus has ravaged China and spread throughout the rest of the world, the outbreak’s toll has sown fear and anxiety. Nearly 3,000 deaths. More than 82,000 cases. Six continents infected.

But government officials and medical experts, in their warnings about the epidemic, have also sounded a note of reassurance: Though the virus can be deadly, the vast majority of those infected so far have only mild symptoms and make full recoveries.

It is an important factor to understand, medical experts said, both to avoid an unnecessary global panic and to get a clear picture of the likelihood of transmission.

“Many people are now panicking, and some actually are exaggerating the risks,” said Dr. Jin Dongyan, a virology expert at the University of Hong Kong. “For governments, for public health professionals — they also have to deal with these, because these will also be harmful.”