Infection is common. Mortality has been reported mainly in juveniles and in association with other diseases. Deaths may be related to asphyxiation, excessive bleeding, or brain damage when leeches move into air spaces in the skull. May also predispose to bacterial infection, predation, impede feeding etc. (J1.22.w1, J3.62.w1, J7.28.w1 J7.30.w2, J7.33.w1, B10.26.w1, B15, B36.34.w34, B37.x.w1).
1 For instance, Fixr.com gives an overview of attic insulation costs, which can amount between $400 and $1,800 for the average home. 2  In general, the whole attic insulation will cost between $1.50 and $3.50 per square foot.
Average Cost to Install an Attic Fan. The average attic fan installation cost is $526. Homeowners report that most attic fan installation projects cost between $529 and $715. The minimum paid for such a project was $250, while the maximum reported cost was $910. The need for an electrician or roofer may increase the project cost.