This is a very old (relatively) research sample of lanthanum hexaboride. If that chemical name means anything to you, then you likely belong to the 0.01% of the living human population that has been privileged enough to have experience in the realm of electron microscopy, or possibly some other advanced technology involvingthe precise blasting of electrons.
Well-scrubbed hands. University of Buffalo researchers in New York published a study December 27 in the journal Infection and Immunity that found that Streptococcus pneumoniae and Streptococcus pyogenes can live on surfaces such as toys, books and cribs for weeks or even months.
How Long Is Pneumonia Contagious? Bacterial pneumonia becomes less contagious when a sick individual has taken antibiotic treatment for about 1-2 days. However, for some bacteria, such as those causing tuberculosis, it may take at least 2 weeks of treatment before a person becomes less contagious. People with viral pneumonia become less contagious after their symptoms recede. However, coughing may persist for several weeks even if one is not contagious anymore.