The phrase "a marked decrease in the prevalence" is correct and usable in written English.
It can be used when discussing a significant reduction in the occurrence or frequency of something, often in a statistical or research context.
Example: "The study revealed a marked decrease in the prevalence of smoking among teenagers over the past decade."
Alternatives: "a significant drop in the occurrence" or "a notable reduction in the frequency."
A study in Malawi that evaluated the impact of H. influenzae vaccine found a marked decrease in the prevalence of invasive H. influenzae infection after vaccine introduction.
From this point, a marked decrease in the prevalence of male rectal gonorrhoea, in parallel with the overall decrease in the gonorrhoea rate, was seen.
Our data provide a solid evidence of a marked decrease in the prevalence of class resistance among treated individuals in Italy, as observed from a retrospective analysis including 49 clinical centres participating in the ARCA cohort during the last decade.
The increase in ESBL-secreting E. coli strains coincides with a marked decrease in the prevalence of methicillin-resistant Staphylococcus aureus (MRSA) in several countries [ 18], indicating that the mechanisms involved differ and that measures instituted to control MRSA are not sufficient to prevent outbreaks of ESBL-secreting organisms.
Results: A review of the prevalence of antibodies associated with HDN in reproductive age women revealed a marked decrease in the incidence of anti-RhD.
But there has been a marked decrease in the past year.
These mutations preferentially cause a marked decrease in the levels of multimeric proteins.
Extensive trypsin digestion resulted in a marked decrease in the activity of the transporter.
Systemic chemotherapy resulted in a marked decrease in the ocular adnexal mass but lymphomatous meningitis and quadriplegia developed.
Water and acetonitrile showed a marked decrease in the fluorescence intensity so they were not selected.
In contrast, solubilization resulted in a marked decrease in the ability of ETR1(C4S,C6S) to bind ethylene.
