I have cancer, am i more susceptible for staphylococcal infections?

If white blood count: If your white blood count is down, you are likely more susceptible to infections, including staphylococcal. Some cancers can lower your immunity, as does chemotherapy and radiation treatments.

Not much: Depends on the type of cancer and whether there's severe loss of white cells / immunoglobulins. The severe fast-acting staph infections are rare but much-feared. You can't avoid all staph but it's great to wash your hands often. A bacterial infection is often the final event in cancer but happens when it's clear the end is near -- let's hope instead you get a good outcome.