In 2005, S.M.D. was renamed Aleo Solar AG. The company went public in July 2006 and is listed on the Frankfurt Stock Exchange (ISIN: DE000A0JM634). Bosch secured a majority stake in the company in 2009.
The viruses are more likely to cause warts when they come in contact with skin that is damaged or cut. Getting a small scrape or biting fingernails may bring on wart. Similarly, cuts and nicks from shaving can provide an avenue for infection.
The HPV type 1 causes most plantar warts. The virus gains access to the skin through direct contact. It is presumed that inoculation of the skin occurs in places likely to be contaminated by others with plantar warts, like communal showers. Once infected by HPV, spontaneous resolution seems to depend on the development of immune lymphocytes that destroy the virus-infected cells. Vaccines are available to protect against certain types of genital viral infections, but there are no vaccines for the HPV types that cause plantar warts.