In connection with the increase in COVID-19 cases, hospitalizations and deaths reported mainly from countries in the WHO regions of Africa, Europe and the Western Pacific, the Pan-American Health Organization / World Health Organization (PAHO / WHO) member states continue to prepare for and respond to a potentially similar increase in the countries and territories of North and South America.
After 12 consecutive weeks with a significant increase in weekly reported cases globally, a declining trend has been observed in COVID-19 cases since epidemiological week (EW) 4 in 2022 and in deaths (since EW 6 in 2022). However, in EW 10 of 2022, a relative increase in the global number of new cases was reported due to increases in 3 of the 6 WHO regions: Western Pacific (29%), Africa (12%) and Europe (2%) (1) (Figure 1).
Globally, the countries reporting the largest relative increase in new cases under EW 10 in 2022 were: Vietnam (65%), the Republic of Korea (44%), the Netherlands (42%) and Germany (22%). %) (1). In addition, the variant of concern (VOC) Omicron on a global level is currently the dominant circulating variant and has displaced the VOC Delta. Among the total number of sequences published in GISAID platform in the last 30 days, 99% corresponded to VOC Omicron and 0.1% to VOC Delta. Pr. On 18 March 2022, most of the VOC Omicron sequences published in the GISAID platform correspond to BA.1 (45.3%) and BA.1.1 (37.8%) sub-pedigrees, while BA.2 accounts for 16.6% and BA.3 accounts. for 0.03% of the VOC Omicron sequences (Figure 2) (1, 2).