Properly stored, raw potatoes will last for 1 to 2 weeks at normal room temperature. To maximize the shelf life of potatoes, store in a cool (45-55Â° F; warmer than the refrigerator, but colder than normal room temperature) dark area; under those storage conditions, potatoes will last about 2 to 3 months.
Postexposure Prophylaxis. Travelers who are exposed to HAV and who have not received hepatitis A vaccine previously should be administered 1 dose of monovalent hepatitis A vaccine or IG (0.02 mL/kg) as soon as possible, ideally within 2 weeks of exposure.
Hepatitis B immune globulin (HBIG) can be given along with the vaccine within seven days of an exposure incident (although it is preferable to administer HBIG within 24 hours of exposure). Unlike the hepatitis B vaccine which 95%-98% effective, HBIG is only 75% effective in preventing infection.