The CH conjecture for concentrated MAD families

A MAD family is a maximal almost disjoint family of infinite subsets of $\text{omega}$. A family is concentrated on a countable subset of itself if there is a countable subfamily such that every open set containing that subfamily contains all but countably many members of the whole family. CH conjecture. The continuum hypothesis implies that there exists a MAD family concentrated on a countable subset of itself. The source gives related consistency results for concentrated MAD families and notes that large-cardinal results motivate this conjecture; its resolution is not supplied.