
States to maintain, not dismantle, their established COVID -19 infrastructure. It is crucial to sustain, inter alia , 
early warning, surveillance and reporting, variant tracking, early clin ical care provision, administration of vaccine 
to high -risk groups, improvements in ventilation, and regular communication.  
 
1  Show us the data: global COVID -19 wastewater monitoring effectors, equity,  and gaps   
 
2.  Capturing the SARS -CoV-2 infection pyramid within the municipality of Rotterdam using longitudinal sewage surveillance   
 
3. Omicron COVID -19 Case Estimates Based on Previous SARS -CoV-2 Wastewater Load, Regional Municipality of Peel, Ontario, Canada   
 3 
 Current trends in reported COVID -19 cases and deaths should be interpreted with caution as several countries 
have been progressively changing COVID -19 testing strategies, resulting in lower overall numbers of tests 
performed and consequently lower numbers o f cases detected. Additionally, data from previous weeks are 
continuously updated to retrospectively incorporate changes in reported COVID -19 cases and deaths made by 
countries.  
 
 
Figure 1. COVID -19 cases and global deaths by 28 -day intervals reported by WHO Region,  as of 7 January 2024 ( A); 26 
June  to 17 January 2024 (B)** 
 
 
 
 
**See Annex 1: Data, table, and figure note  
 
A 
B 4 
 At the regional level, the number of newly reported 28 -day cases decreased across four of the six WHO regions: 
the African Region ( -63%), the Region of the Americas ( -18%), the Eastern Mediterranean Region ( -13%), and 
the European Region ( -13%); while case  numbers increased in two WHO regions: the Western Pacific Region 
(+77%), and the South -East