Again as in second case it is recommended to setup your own system on some CMS, if number of your students is going to shoot more then 1,000 or build a scratch coded site like in php, if number is going to be above 10,000. (elearningindustry.com)
Previous laboratory findings as well as estimates of fitness based on genetic clustering of strains in the population suggested a lower relative fitness for MDRTB compared to drug - susceptible tuberculosis, but few studies have directly measured the incidence of second cases of tuberculosis among contacts of both MDRTB and drug - susceptible tuberculosis. (sciencedaily.com)
That case involved a woman in Miami - Dade County, while the newer, second case involved a resident of Broward County, north of Miami. (health.com)