Laserfiche WebLink
�vuuv, 7 <br /> ied <br /> cause illness in certain human population with underlying health conditions but <br /> do not affect healthy individuals. Generally, individuals are exposed through the <br /> air to a much higher levels of mold spores outdoors than indoors. <br /> 6. Culturing bacteria does not support a finding of a large amount of bacteria <br /> biomass or an amplification of bacteria on the surfaces. <br /> Unlike molds,bacteria species can grow exponentially in just a few hours. <br /> Heterotrophic bacteria include all bacteria that use organic nutrients for growth. <br /> They are present in all types of water,food,soil, air, or vegetation. For example, <br /> more than 30 genera of bacteria have been found in drinking water(Allen, M. J., <br /> Edberg, S. C., and Reasoner,D. J. (2004). Heterotrophic plate count bacteria-- <br /> what is their significance in drinking water?Int JFood Microbiol. 92(3),265- <br /> 274). Similar to swabs that were used to culture mold, culturing the swab for <br /> bacteria can even provide more exaggerated results than mold. Because the <br /> growth of bacteria is exponential, culture swabs can multiply exponentially from <br /> the time sampled to the time they arrive at the laboratory. In this case,there was <br /> about 7 to 8 days of delay. Even if bacteria sample were cultured right away,they <br /> would have produced large number of colony forming units due to the bias that <br /> exists with dilution factor as explained above for molds. The bacterial species <br /> identified in this case were mostly found in environments such as soil,air,and <br /> dirty surfaces and can easily be brought indoors by individuals from outside and <br /> accumulate over time on surfaces similar to the way mold spores accumulate on <br /> surfaces. The bacteria culture swabs reported in this case does not mean that <br /> there was large amount of bacteria biomass on the surfaces nor does it suggest <br /> that there was an amplification of bacteria on a given spot. <br /> V. Conclusion <br /> Based on a review of the case-specific materials provided to me to date, <br /> and my training, education and experience in the field of mycology, I hold the <br /> following opinions: <br /> 76 <br />