Bungwe la US Food and Drug Administration likupereka zomwe apeza pa ntchito yoyeserera yomwe idayesa letesi yazaulimi ya romaine makamaka m'malo ndi m'mafamu a Salinas, California, ndi Yuma, Arizona, madera omwe akukula chifukwa cha kupezeka kwa tizilombo toyambitsa matenda omwe adalumikizidwa ndi kuphulika kwa matenda oyambitsidwa ndi madzi.
Ntchito yozindikira matenda a Escherichia coli (makamaka, E. coli yotulutsa poizoni wa Shiga kapena STEC) ndi Salmonella spp. idayamba mu Novembala 2019 ndikutha mu Disembala 2020, atayima pang'ono potolera zitsanzo ndikuyesa kuyambira Marichi mpaka Okutobala 2020 chifukwa cha mliri wa COVID-19. A FDA sanazindikire tizilombo toyambitsa matenda panthawiyi.
Bungweli lidatsogoza zosonkhanitsira zitsanzo m'mafamu ndi malo olembetsedwa ndi FDA omwe adadziwika pakufufuza kwa traceback monga ogulitsa letesi yachiromaine yomwe mwina idalumikizidwa kapena yolumikizidwa ndi kubuka kwa matenda obwera chifukwa cha chakudya kuyambira 2017 mpaka 2019. A FDA adasonkhanitsa ndikuyesa zitsanzo 279 zamatenda onsewa. Zitsanzo zilizonse zidapangidwa ndi ma subsamples a 10, ndipo gawo lililonse limakhala ndi mutu umodzi kapena zingapo kapena mitima ya letesi yachiroma ndipo imalemera pafupifupi magalamu 300.
Njirayi - kusonkhanitsa ndi kuyesa zitsanzo zopangidwa ndi zigawo zingapo - kumawonjezera mwayi wodziwa tizilombo toyambitsa matenda ngati alipo, chifukwa chakuti zoopsa za tizilombo toyambitsa matenda sizingakhalepo mofanana. Ogwira ntchito ku bungweli adasonkhanitsa zitsanzo zonse mwachilengedwe koma masamba akunja atachotsedwa. Palibe letesi wodulidwa mwatsopano yemwe anatoleredwa.
Kuwonetsetsa kuti chitetezo cha microbiological chamasamba amasamba chikupitilira kukhala chofunikira kwambiri ku FDA. Ngakhale kuti palibe tizilombo toyambitsa matenda timene tidapezeka panthawiyi, kuyang'anitsitsa nthawi yakukula/kukolola n'kothandiza kudziwitsa zachitetezo cha bungweli, makamaka zomwe zafotokozedwa mu Leafy Greens Action Plan ya FDA. A FDA adatulutsanso dongosololi mu Marichi 2020 kuti alimbikitse njira yachangu komanso yothandizirana poletsa kufalikira kwa masamba obwera chifukwa cha STEC. Mu Epulo 2021, a FDA adatulutsa mtundu wosinthidwa wa pulaniyo womwe umatsimikiziranso kudzipereka kwathu pakupititsa patsogolo chitetezo chamasamba obiriwira.
Kuti mudziwe zambiri: fda.gov