The fourth wave became serious in the midst of starting a normal life. The fourth wave of the corona epidemic has taken a serious form in Western Europe. Until recently, the trend in Europe was to remove the restrictions related to Covid-19 and start normal life. But, now one by one all the countries are implementing the ban again. Ireland has the highest vaccination rate in all of Europe. There, 89 percent of people above the age of 12 years have been vaccinated. On the other hand, Portugal has also been successful in fully immunizing 87 percent of its population. But now with the increase in infection in both these countries, new restrictions have been implemented. Meanwhile, Austria is once again preparing for a complete lockdown to deal with the new wave of infection. By doing this, Austria will become the first country in Western Europe to implement a complete lockdown again. In this wave, it is being seen that young people who have not been vaccinated or those who are very old, they are mostly victims of infection. The lockdown began in Austria last week for those who have not been fully vaccinated. Here, Germany has entered a state of emergency due to increasing infection, soon emergency can be declared there too.