"constitutes a source for" is a grammatically correct phrase and can be used in written English.
It means that something serves as a source or origin for something else. Example: The library constitutes a source for a wealth of knowledge and information.
This population serves as a large reservoir of infection that contributes to a high disease burden within Burma and likely constitutes a source of infection for neighboring regions.
As Richards et al, point out in their malaria piece, the high prevalence of p. falciparum malaria in eastern Burma continues to serve as a large reservoir that likely constitutes a source of infection for neighboring countries.
Three species of the vector are currently responsible for the T. b. rhodesiense infection of humans in Uganda Glossina fuscipes fuscipes, G. pallidipes and G. morsitans morsitans, but only the first two constitute a source for parasite transmission in the Queen Elizabeth National Park.
Additionally, Pst oversummering in northeastern California may constitute a source of inoculum for central California (Kolmer et al. 2009) and for the Pacific Northwest (Chen 2005).
Aside from their recreational use, lakes constitute a source of water for household, agricultural, and industrial uses.
Hence, he constituted a source of inspiration for the authors of The Federalist Papers (a series of 85 essays arguing for the ratification of the United States Constitution) and for the major orators of the French Revolution.
During reactivation, animals may shed bacteria, thus constituting a source of infection for other animals.
Within a changing social and economic context, these two cultural practices constitute a source of vulnerability for children.
Within the changing social and economic context, these two cultural practices constitute a source of vulnerability for children.
During reactivation animals may shed bacteria and contaminate the environment, thus constituting a source of infection for other animals [ 10].
