Hello Dic, I am worried about a incident which was happened 3 days ago. I went to see a building construction site. When I was keen on visiting the work, One of the worker by mistakenly place his bare foot on my toe fingers. His foot had sand and are little bit wet. The sand was landed on my toe's first and second fingers and also on my nails. I am worried suppose If his foot was bleeding and put his leg on my toe, is there any risk for diseases like HIV? I did not have any visible cuts on my toe and fingers. But my worry is tha nail area of my toe from which any particle can enter. I can't concentrate on anything doc. Pls solve my issue. I can't concentrate on my work doc. U reply is precious for me.