This may have been noted before, but a nice summary of Balin's work on Chlamydia pneumoniae and Alzheimer's. Note his discussion of the need for using multple measures (up to 15) and different methodologies in trying to detect a very difficult to detect organism:
http://www.tangledneuron.info/the_tangled_neuron/2007/06/chlamydia-pneum.html

Jim, I've written Balin
The difference between what we do and what we are capable of doing would suffice to solve most of the world’s problems. Mohandas Gandhi
Jim, Thanks, good
Jim, Thanks, good article.
CFIDSi/ME 25yrs, FMSi, IBSi, EBVi, Cpni, (insomnia - melatonini, GABA, tarazadone, triazolam, novocyclopine, allergy formula, 3 gm tryptophan), Natural HRT peri-M, NACi 1.5 gm, 6-07 Doxy 200 mg day pm, Azith 375 mg M/W/Fday, 12-3-07 4th pulse 1 X 375 mg 3day