Oregon has ordered 77,500 doses of the latest COVID-19 vaccine booster and they should be available at your local pharmacy soon. The Oregon Health Authority is urging people to get the newest shot when it is available. This injection targets the BA.4 and BA.5 Omicron variants specifically.
The variant you were last infected with, and when, also impacts your risk of reinfection. A pre-print study from Qatar recently found that effectiveness of a pre-omicron infection (like delta or alpha) against a BA.5 infection was about 28% whereas effectiveness of an omicron infection against a BA.5 infection was closer to 80%.