Punishment should be increased for this small group of people. We can imagine that if this woman returns to China and has had contact with many close contacts, it will probably lead to a large-scale spread in COVID-19. Due to the high infectivity of COVID-19, the virus will spread very quickly after people come into contact with close contacts. We can calculate it mathematically. If a person has ten close contacts, then COVID-19 can spread exponentially according to the number of close contacts. At this time, it will become very difficult for people to take epidemic prevention measures. It takes a lot of manpower and material resources to investigate the relevant personnel. So a person's carelessness is likely to lead to the need to spend a lot of money and strength to make up for this loss.
I think we should increase the punishment for concealing the illness. Only by increasing the punishment, many people think that if you do this, you will face jail for a long time in the future. Naturally, they dare not take such a risk. Everyone will analyze the cost performance of things before choosing whether to do it or not. Many lucky people hope to return to China in this way. They also understand that although they will be punished, this punishment will not have a particularly great impact on the future. Therefore, increasing the punishment can better curb this phenomenon.
In the process of confronting COVID-19, every country should raise the awareness of the whole people against COVID-19. At the same time, it is necessary to strengthen relevant regulatory measures to better ensure the implementation of COVID-19's policies. If the punishment is not increased, it is likely to lead people to take chances and cause huge losses.