Why is a bleach and water solution effective on surfaces and not in syringes?
Environmental surfaces, such as floors, examining tables, counters, etc., that may have infectious fluids (such as blood) may still be cleaned with a solution of 1 part bleach to 10 parts water (or 1 part bleach to 100 parts water if stronger concentrations are too harsh for the surface). It is much easier to physically remove blood and other potentially infectious materials from environmental surfaces than from small inaccessible areas within needles and syringes–that is why full-strength bleach is necessary for cleaning “works”. Another consideration is that contact with environmental surfaces is in no way similar to being injected with a needle.
