 
<translate> Ka yi la'akari da wannan tambayar. Yajin aikin malaman West Virginia ya fara ne a ranar 22 ga Fabrairu, 2018 tare da kira daga rassan West Virginia na Tarayyar Malaman Amurka da Ƙungiyar Ilimi ta Ƙasa don malamai a duk faɗin West Virginia don yin yajin aiki. Yajin aikin, wanda aka kira a matsayin martani ga fushin malamai da sauran ma'aikatan makaranta kan karancin albashi da tsadar kiwon lafiya, ya shafi kusan malamai 20,000 da ma'aikatan makarantun gwamnati kuma ya rufe makarantu a duk kananan hukumomi 55 na West Virginia, wanda ya shafi kimanin dalibai 250,000. Ya ci gaba har zuwa Maris 7, 2018.  Yaushe ne yajin aikin malaman West Virginia ya fara? Idan amsar ita ce "Fabrairu 22, 2018"; bayyana dalilin: <eng> Consider the question. The West Virginia teachers' strike began on February 22, 2018 with a call from the West Virginia branches of the American Federation of Teachers and the National Education Association for teachers across West Virginia to strike. The strike, called in response to anger among teachers and other school employees over low pay and high health care costs, involved roughly 20,000 teachers and public school employees and shut down schools in all 55 West Virginia counties, affecting some 250,000 students. It lasted until March 7, 2018.

When did the west virginia teacher strike start?
 If the answer is 'February 22 , 2018'; explain the reasoning: 