The phrase "affects the spread of" is correct and usable in written English.
It can be used when discussing how one factor influences the distribution or dissemination of something, such as information, diseases, or trends.
Example: "The new policy significantly affects the spread of misinformation on social media platforms."
Alternatives: "influences the dissemination of" or "impacts the distribution of".
Similarly, we study how the social status of a node in an interaction network affects the spread of opinion that leads to consensus building.
Now a team at the University of Cape Town in South Africa is using new tools to investigate how the return of patients to their communities affects the spread of the disease.
Wind affects the spread of wildfires.
"What factors govern the distribution of species across space?" As it turns out, a little communication between individuals affects the spread of both species as a whole.
We show (for the first time, to our knowledge) a mediation effect in which the spread of one health behavior affects the spread of another.
It remains unclear whether a vaccination program can prevent the spread of infectious disease when the vaccine-resistant strain emerges and how a loss of immunization by vaccination within birds infected with the vaccine-resistant strain affects the spread of infectious disease among birds.
Such nano-engineered drugs have the promise to offer a viable means for keeping the disease at bay by inhibiting the destructive nature of HIV/AIDS in an infected individual and to perhaps reduce their capacity to infect others, hence affecting the spread-of-disease model.
Other, more subtle influences, such as changes of temperature or humidity, may affect the spread of diseases by dust.
But Mellor says that too much HA in the blood could could damage blood vessels and even affect the spread of cancer.
OP already announced that he would be easing the movement restrictions for sheep farmers, a move that is also likely to affect the spread of said disease.
