"exceptionally high prevalence" is correct and usable in written English.
It refers to a significantly high rate or frequency of something, typically in relation to a specific disease or condition. Example: The study found an exceptionally high prevalence of obesity in the population, with almost 50% of adults classified as obese.
The exceptionally high prevalence of G1896A in FH and HCC demonstrates that the precore mutants are strongly associated with the progression of liver diseases in patients with HBeAg negative serology.
To their surprise, not only did the researchers detect Campylobacter in the seals, but they also found an exceptionally high prevalence of it within the colony.
Participant enrolment was from a single site in an area with exceptionally high prevalence of HIV and incidence of tuberculosis.
Our study of women initiating ARV therapy recorded an exceptionally high prevalence of cervical abnormalities (66%).
In South Africa, this may have been due to the exceptionally high prevalence of class III obesity.
34 For example, we found an exceptionally high prevalence of ciprofloxacin-resistant Campylobacter, which has been recorded in several Asian countries, including Cambodia, India, and China.
While differences in tobacco use exist in SSA, Madagascar has exceptionally higher prevalence rates (48.9% of males; 10.3% of females).
Thus, Lilongwe City had exceptionally high HIV prevalence next to a low prevalence neighborhood (HL in Figure 10) in 1995 and 1996, while Zomba City had significantly low prevalence surrounded by high prevalence districts (LH).
Throughout the early stages of the HIV and AIDS epidemic, it was marginalised due to the poor reach of health services that concentrated in the Siaya area, presumably contributing to its exceptionally high HIV prevalence rates.
Frequent migrants may be important links to geographically-spread sexual networks, and high female mobility may be a factor enabling greater inter-connectedness of sexual networks beyond those created by male migrants alone, potentially contributing to the region's exceptionally high and sustained HIV prevalence.
Furthermore, the prevalence of daily tobacco use (38%) in this group is exceptionally high when compared to the national prevalence of 16% [ 57], particularly for those under 18 where the national prevalence is 4%.
