Organ pipes are generally made out of either metal or wood. Very rarely, glass, porcelain, plastic, paper, Papier-mÃ¢chÃ©, or even stone pipes may be seen. A historical organ in the Philippines has pipes made exclusively of bamboo. Metal pipes are usually made of lead; for increased rigidity it is alloyed with tin along with trace amounts of antimony and copper.
Lyme Disease IgM antibodies usually appear 1-2 weeks after an initial exposure and return to normal after about 6 to 8 weeks. IgG antibodies are detectable in most people 4-6 weeks after exposure but may be detectable sooner in some people. IgG antibodies may persist indefinitely.
Timing for Western Blot Test. Western blot IgM and IgG testing occur for patients with samples drawn within four weeks of disease onset, with IgG testing alone for samples taken after four weeks. This is due to the significant rate of false-positives in later-stage Western blot IgM testing.he Western blot test for Lyme disease is usually used following a positive or indeterminate ELISA (or IFA) test which is more sensitive, but less specific, than the Western blot.