What are the effective ways to prevent the spread of the epidemic when the United States announces restrictions on the entry of Indian tourists?

There are many ways to prevent the spread of the epidemic, and virus isolation is the most effective and lowest cost method at present.

First of all, the most fundamental and direct way to prevent and control the epidemic is to vaccinate, because for any virus, if the corresponding vaccine can be developed and the driving force is relatively high, then these COVID-19 cannot spread among people. Therefore, for some countries, the most important thing is to improve the current vaccination rate. Only by increasing the vaccination rate can an invisible firewall be formed among the whole people, and an effective barrier and protection can be formed through vaccines.

More importantly, from the perspective of moral books, the current whole-course vaccine is still very accurate, and they can't get enough vaccines in time to form a strong vaccine barrier. Therefore, for some countries, if there is a certain COVID-19 epidemic, the most effective and direct way is to isolate patients who have already suffered from COVID-19 epidemic and conduct centralized isolation management. Only in this way can the COVID-19 epidemic not spread further.

Although this is not very humane and authentic for the United States, for the United States, its entire epidemic prevention and control policy is also being isolated and adopted accordingly, so it will impose strict restrictions on some planes and flights that India wants to enter the United States, and he does not want the COVID-19 epidemic in India to spread to the United States again, because for the United States at present, it is also seriously affected by the COVID-19 epidemic, and its entire vaccination rate has just increased. At present, India is at the center of the epidemic. If the Indian government can't take active and effective measures to control the COVID-19 epidemic in time, it will be more seriously impacted and affected.