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.
1 Prices for electric attic fan kits average $70-$300, with operating costs of about $2-$3 a month; a humidistat (which activates the fan if it senses excess moisture inside the attic) adds another $90-$150. Attic fans can be installed through the roof or through a side wall of the attic. 2  There is some potential for leakage after installing a roof-mounted attic fan, and in extreme cases an attic fan can bring noxious gasses back into the house. 3  The Natural Handyman describes the pros and cons of whole house fans.