Are public library books contaminated by bacteria?

Area of Science:

• Microbiology
• Public Health

Background:

• Books are frequently shared in public and private settings.
• Understanding the microbial load on books is important for assessing public health risks.

Purpose of the Study:

• To investigate and compare the microbial flora on books from public libraries and family households.
• To determine if library books pose a risk for transmitting virulent bacteria.

Main Methods:

• Samples were collected from 15 public library books and 15 family household books.
• The surfaces of the books were analyzed for microbial contamination.
• Specific bacteria, Staphylococcus epidermidis, were identified and quantified.

Main Results:

• Staphylococcus epidermidis was found on 4 library books and 3 household books.
• The number of organisms detected per page was very low, ranging from one to four.
• No virulent bacteria were identified.

Conclusions:

• The microbial load on library books is minimal and comparable to household books.
• Library books are safe for public use and do not represent a significant source of bacterial transmission.
• The study supports the safety of public library book circulation.