what kind of a bacteria is commonly found on the dollar bills?

Question

I did te experiment with a dollar bills, such as $5, $1, and $20, the experiment showed that there is a bactiria wich looks like white small spots on the petri dish and i have no idea what kind of bacteria it is, i just kind of takins a quess that it is BACILLUS. Am i right?

Answer 1

Hard to say; this is the color that most bacterial colonies have when you plate them out, and your hand has probably dozens, if not hundreds, of different kinds. It also depends upon what you handled last. However, one very common one is Staphylococcus epidermidis.

Answer 2

It would be helpful to know the media used, temp incubated, aerobic/anaerobic conditions, gram stain, other biochem test results.. Just looking at white spots doesn't help.. Assuming nutrient agar at 37 degrees celsius, it could be a bacillus (maybe B. subtilis) among others... although there are a few others that plate out as white spots, all of which could be on a dollar bill.

Answer 3

Many governments have produced counterfeit US money because the US Dollar is good anywhere in the world when purchasing goods needed by other countries. US money does not use paper. The bills are printed on fabric. The exact composition of which fibers are a secret.

Answer 4

Since you say it is small 'white' spots, my guess would be Staphylococcus epidermidis. It could also be a type of diphtheroid. These are both commonly found on the skin. If you are able to do a stain on the colonies, do one. If you see clusters of cocci, it is a Staphyloccus, but if it looks like "chinese letter" then it would be diphtheroids.

Answer 5

i think coccus are round, bacillus are rods and spirula are spirals. just a wild uneducated guess maybe it is streptococcus?