Like in the case of India, the Omicron variant is driving the current wave of infection across the world. In most countries, there is a rapid spread of the infection with a record number of cases. However, the deaths have been much lower compared to the earlier waves. The emergence of the Omicron variant has resulted in an exponential increase in the number of new COVID-19 cases across the world. The latest data shows an average of 37 lakh new cases a day. While there is a rapid spread of Omicron resulting in lakhs of new cases every day, the fatality rate across countries is lower than in earlier waves. In an earlier story, we analysed the trends of the COVID-19 third wave in India, driven primarily by the Omicron variant. The trends indicate that despite a rapid increase in the number of new cases during the ongoing third wave, the number of deaths is much lower than the second wave. In this story, we look at the trends across some of the important countries. In each of these countries, the Omicron variant is believed to be driving the current wave. Unlike in the case of India, which is going through a distinct third wave, many of the countries have had multiple waves earlier before the current wave. The data for this story is collated from Ourworldindata.org, which has compiled the information provided by authoritative sources of the respective countries. We have considered a 7-day moving average for the number of daily cases and deaths to even out any outliers in the reporting. United States of America (USA) Since taking over as the country with the highest number of COVID-19 cases during the initial months of COVID-19 spread, the USA has continued to be the most impacted country in each of the subsequent waves. This trend continued even during the current wave. The current wave in the USA is attributed to Omicron variant with more than 90% of the cases in the last few weeks because of this variant. Even the high global numbers of daily cases are largely contributed by the numbers in the USA. The country is currently reporting an average of 5 lakh COVID-19 positive cases a day. However, the wave seems to have crossed the peak as close to 9 lakh daily cases were reported at the peak of this wave. This is multiple times higher than the earlier peak, when the number of daily cases was only around 3 lakh cases during February 2021. The subsequent wave during September 2021 recorded around 2 lakh cases a day at the peak. The Case Fatality Rate (CFR) is less during the current wave compared to the earlier waves. The number of deaths is on par with the numbers reported in the earlier wave during September 2021. It must be noted that the number of cases during the current wave is almost 4 times the number of cases during the previous wave while the number of deaths has remained more or less the same. The number of deaths might increase slightly in the days to come as deaths lag the cases by about two weeks. Despite the possibility of an increase in deaths, it would be much lower than during the earlier waves. United Kingdom (UK) The current wave in the UK is past its peak with daily cases on the decline over the past few days. At the peak of the current wave, around 1.8 lakh cases were reported in a day. For the past one week, the number of daily cases has reduced and currently around 90 thousand cases are being reported. The number of daily deaths has also stabilized with the fall in the number of cases. The peak in the number of deaths was around 250 a day. While this is slightly higher than the numbers during the preceding wave, the fatality rate (number of deaths per 100 cases) is much lower as the number of cases is many times more than during the earlier wave. Around this time in 2021, the UK experienced a high fatality rate of around 1200 plus deaths a day. However, the peak number of cases was only around 60,000 a day compared to the peak of 1,80,000 during the current wave. In other words, while the current wave has spread rapidly and infected a greater number of people, it is definitely less fatal. In view of the reducing number of cases, the UK government is taking steps to ease travel and other COVID-19 related restrictions which were imposed earlier. Brazil Brazil has the highest number of COVID-19 cases among the Latin American countries and is third in the world. The latest data indicates that with around 2 lakh daily cases, the new wave of COVID-19 infection is in the ascendency and could further increase in the coming days. The earlier peak was around 1.1 lakh cases (singe day reported peak, not average) i.e., the number of cases at the current peak is already twice the earlier peak. However, the number of deaths reported is much lower than the earlier peak.