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Adenovirus is one of the enteric viruses spreading in Egypt. Results in Figure 1 and Table 2 showed that 66% of samples were positive. Although this is a high prevalence, comparing it to pre-corona pandemic reports, it is lower than the recorded prevalence in the same WWTP in 2017 in untreated and treated wastewater which was 84 and 50%, respectively (Elmahdy et al. 2019). Another study also concerned with the same WWTP showed 91.7% positivity of adenovirus (El-Senousy et al. 2013). On the contrary, another study reporting on a different WWTP called Abou-Rawash showed the presence of adenovirus in 50% of wastewater samples (Elmahdy et al. 2020).
Table 2

Number of adenovirus, HAV and rotavirus positive wastewater samples

Months/number of samplesViruses
AdenovirusHAVrotavirus
August/1 
September/3 
October/3 
November/2 
December/2 
January/4 
February/4 
March/2 
Positive/total 14/21 3/21 2/21 
Prevalence percentages 66% 14.3% 9.5% 
Months/number of samplesViruses
AdenovirusHAVrotavirus
August/1 
September/3 
October/3 
November/2 
December/2 
January/4 
February/4 
March/2 
Positive/total 14/21 3/21 2/21 
Prevalence percentages 66% 14.3% 9.5% 
Figure 1

CT values for adenovirus detection in wastewater samples showing 14 positive samples with prevalence percentage of 66%.

Figure 1

CT values for adenovirus detection in wastewater samples showing 14 positive samples with prevalence percentage of 66%.

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