A lateral flow test or something using a lab?
Must be a lab test as lateral flow is like £2:
https://www.boots.com/flowflex-antigen-rapid-test-lateral-flow-self-testing-kit-1-test-10312288
Or $7 in Walmart: https://www.walmart.com/ip/Flowflex-Covid-19-Antigen-Home-Test-1-Test/837992467?classType=VARIANT&athbdg=L1200
https://www.hrw.org/report/2021/04/27/threshold-crossed/israeli-authorities-and-crimes-apartheid-and-persecution
https://www.hrw.org/news/2023/12/05/does-israels-treatment-palestinians-rise-level-apartheid