I was traveling in South Korea as the coronavirus struck, and I was amazed at how the country sprang into action

Arriving at Seoul's Incheon Airport, I was not sure what to expect.

South Korea has barred all non-Korean travelers coming from China's Hubei province from entering the country, effective this Tuesday.

People arriving from China have to go to a quarantine area that was specifically set up for the country.

Source: Korea Times

While there was a quarantine area set up when I arrived last week, I did not have to undergo any extensive examination as a traveler arriving from the US. Instead, I was through customs and out of the airport in under 15 minutes.

The first evidence of how seriously Seoul was taking the coronavirus came in the form of endless signs about how to avoid getting sick.

Some signs were small.

Others were massive, like these long banners hung in various public spaces around the city.

I even got reminders while attempting to join public WiFi networks.

The subway was filled with signs, which explained that stations and trains were being regularly sanitized.

All the signs were basically instructing the same thing: wear a mask, wash your hands, and cover your mouth when you cough.

The endless instructions about masks stood out. Experts say that masks are not necessarily effective in preventing the spread of the virus. In the US, the CDC only recommends face masks for healthcare providers and people who might be infected.

Source: Business Insider

Meanwhile, South Korea's CDC's official take is that people should take steps to prevent spreading the coronavirus, "including hand washing, cough etiquette, and wearing mask if you have respiratory symptoms."

Source: KCDC

Department stores and restaurants were requiring workers to wear masks on the job.

The Royal Guard at Gyeongbokgung Palace all had masks on.

These masks were so classy I had to double check if they were part of the standard uniform, but they appear to be a new addition.

Visitors — including people in traditional Korean hanboks — at Gyeongbokgung Palace also donned masks.

Wearing masks is more common in South Korea than in the US, both for people who are sick and want to avoid infecting others and for people dealing with air pollution. I came across various cute designs — like these fluffy fleece masks — while shopping in Seoul.

However, many South Koreans are currently searching for more medical-grade options. When I visited a Costco warehouse last week, surgical masks were swiftly selling out.

Read more: Costco is selling out of surgical masks in South Korea, as the country battles the spread of the coronavirus

People hoarding masks or hand sanitizer can face a fine of up to $42,108 and two years in prison.

Source: Business Insider

Pharmacies and shops selling masks put new shipments in the front of stores, where crowds have been quick to buy up inventory.

I followed the advice of wearing a surgical mask — which I purchased on Amazon back in the US — about half the time. I washed my hands and used the hand sanitizer provided in most public spaces pretty much constantly.

The bulk of government efforts have been focused on people visiting from China, not on American tourists. Last week, my phone (and others' around me at Costco) received an emergency alert, instructing me to contact the disaster prevention headquarters if I develop a fever within 14 days of visiting China.

Overall, I was more heavily impacted by others' voluntary actions than anything the government required.

I slept overnight at a temple stay that is typically split evenly between English-speaking foreigners and Koreans. However, due to coronavirus-related cancellations, I was the only non-Korean to participate in the program.

The Boston Symphony Orchestra cancelled its tour throughout Asia, with planned stops including Seoul, Hong Kong, Shanghai, and Taipei. K-pop stars and other performers have also cancelled shows — but, since I have a friend that works with the BSO, this one hurt me the most.

Overall, I was impressed and surprised by how Seoul and the South Korean government responded to the threat of coronavirus. It was downright impossible to avoid signs about how to best prevent the spread of the disease.

Maybe it was naive, but the overwhelming omnipresence of these signs and frequent sanitation helped put my mind at ease on bigger issues, such as whether Seoul would be ready if more coronavirus cases were confirmed.

The abundance of masks also took me by surprise. However, with masks beginning to sell out in countries around the world, the reliance on surgical masks is the new normal.

As I prepare to leave Seoul, my main concern is whether countries I'm planning to visit in Southeast Asia are ready to respond to the coronavirus with the same speed as South Korea.