was there any organism found in patient 30460's first mrsa screen microbiological examination in 03/last year?
select count(*)>0 from microbiologyevents where microbiologyevents.hadm_id in ( select admissions.hadm_id from admissions where admissions.subject_id = 30460 ) and microbiologyevents.spec_type_desc = 'mrsa screen' and microbiologyevents.org_name is not null and datetime(microbiologyevents.charttime,'start of year') = datetime(current_time,'start of year','-1 year') and strftime('%m',microbiologyevents.charttime) = '03' order by microbiologyevents.charttime asc limit 1