The phrase "affects a host of" is correct and usable in written English.
It can be used to describe the impact or influence something has on a large number of people, things, or situations.
Example: "The new policy affects a host of employees across various departments, leading to significant changes in workflow."
Alternatives: "impacts many" or "influences a variety of".
Breastfeeding duration impacts obesity, a host of infections of infancy, and breastfeeding duration affects a host of maternal diseases as well.
Microarray analysis showed that Hcl1 affects a host of key cellular pathways in M. tuberculosis.
The amount of resources that a plant allocates to reproduction has been found to have significant consequences for growth and this in turn affects a host of additional variables relevant for plant performance in the field, including their interactions with herbivores.
In many cancers, regulation of specific signalling molecules goes awry, affecting a host of other proteins and cellular processes.
A growing body of research provides evidence that quality early childhood experiences can affect a host of life outcomes.
It may also affect a host of other environmental and quality-of-life issues around Britain. "This case has wide implications for environmental law generally," said Richard Buxton, a lawyer for the plaintiffs.
This affected a host of Southern Christian schools and academies, many of which saw the decision in terms of "big government" threatening their religious liberty — the liberty to discriminate based upon their reading of the Bible.
As in those markets, an evaporation of credit could force some large investors – especially hedge funds speculating with lots of borrowed money – to sell off their holdings, creating price swings that could affect a host of marketplace prices and wipe out small investors in just a few moments of trading.
These encounters positively affect a host of college student outcomes, such as cognitive and psychosocial outcomes (Mayhew et al., 2016; Pascarella & Terenzini, 2005).
"Three months is nearly impossible," says John Reilly of the Massachusetts Institute of Technology in Cambridge, who models how climate change may affect a host of environmental and economic factors like the biofuels industry.
So there is a tendency to put off decisions affecting a host of deeper issues: privatization of farm land, liberalization of the movement of labour, loosening of capital controls, allocation of more cash to local authorities to pay for health, education and pension, and the freeing up of prices of energy and water.
