Tesla CEO Elon Musk said Friday that people are overreacting about the deadly coronavirus ( COVID-19), while health officials across the world prepare for a possible pandemic.

“The coronavirus panic is dumb,” Musk tweeted to his 31+ million followers. Musk does not have a background in medicine or virology.

The coronavirus panic is dumb — Elon Musk (@elonmusk) March 6, 2020

Tesla Inc stocks are down almost 3% today.

The new coronavirus has spread rapidly in northern California, where Tesla Inc is headquartered. California, which has 66 confirmed cases, reported its first death from the virus on Wednesday. Across the United States, at least 260 people have been infected and at least 14 people have died, according to data compiled by Johns Hopkins University.

Seattle here. This is irresponsible.

What a jerk. People have died.

Do you know what is like to struggle to breathe? I do. It is horrifying. — Lisa #BleedingHeartLiberal (@Itsagoodlife48G) March 6, 2020

The new coronavirus is a respiratory virus that spreads mainly through contact with the droplets of infected people. There is no specific treatment for the disease caused by a new coronavirus and there are currently no vaccines available to protect against the virus.