dust-mite allergen - particle size?

[aky04]

Hi there,
does anybody know something about the size range of dust-mite faeces?
I did a literature research of the last 5 years, but I just found one 
japanese
paper dealing with this topic. I posted this message last week, but I 
think it wasn`t successful. 
Please post Your answer - perhaps there is anyone else who want`s to know 
that - and please mail me, `cause I´ve not the possibility to „surf“ 
every day. 
What a pitty :(
Thanks  Carolin