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.
When is Pneumonia Contagious Pneumonia due to fungus, toxins, smoke, and chemicals is not contagious. It is contagious when it is caused by bacteria and viruses. The condition is said to be contagious for 48 hours, or for 2-3 days after starting antibiotics. However, if the antibiotics are taken immediately on the onset of the symptoms, then the contagious period reduces.