Je was op zoek naar: stratified sampling (Engels - Swahili)

random sampling
imple random sampling

establishment of extended virology sampling
kuunda sampuli iliyoendelezwa ya vairolojia

just a sampling of messages on twitter.
baadhi ya ujumbe kwenye twita.

these virology sampling practices are also recruited to be nationally representative (figure 1).
huduma za kuchukua sampuli za vairolojia pia ziliteuliwa kuwakilisha taifa nzima (picha ya 1).

the rcgp rsc practices participating in the annual influenza virology surveillance have started sampling from patients showing symptoms of a lrti.
huduma za rcgp rsc zinazoshiriki katika uchunguzi wa kila mwaka wa vairolojia ya homa ya mafua zimeanza kuchukua sampuli kutoka kwa wagonjwa wanaoonyesha dalili za lrti.

opportunistic sampling for serology in children younger than 10 years might be limited due to the overall reduced rate of blood tests in children.
kuchukua sampuli kifursa kwa ajili ya serolojia kwa watoto walio na umri wa chini ya miaka 10 kunaeza kuwa na vizuizi kutokana na kupungua kwa viwango vya jumla vya vipimo vya damu kwa watoto.

within the first 2 weeks of setup of this surveillance, we have identified 3 cases: 1 through the new coding system, the other 2 through the extended virology sampling.
ndani ya wiki 2 za kwanza za kuweka mipangilio ya uchunguzi huu, tumetambua visa 3: 1 kupitia mfumo mpya wa kuweka msimbo, vingine 2 kupitia kuendelea kuchukuliwa kwa sampuli ya viarolojia.

as of march 7, 2020, the surveillance system has detected 2 cases of covid-19 in low-risk patients with no history of travel through extended virological sampling.
kufikia tarehe 7 machi 2020, mfumo wa uchunguzi umegundua visa 2 vya covid-19 miongoni mwa wagonjwa wa hatari cha chini ambao hawana historia ya usafiri kupitia sampuli zilizoendelezwa za viarolojia.

these modifications based on the researchers continued work that to search for an optimal nucleic acid detection kit for rapid diagnosis, as well as the samples from respiratory tract including blood sampling, which increased the availability of different specimens, and supported bringing the specific antibody positive result into the confirmed criteria.
marekebisho haya kulingana na watafiti yaliendeleza kazi ya kutafuta kifurushi bora cha kugundua asidi ya nyuklea kwa ajili ya upimaji haraka, pamoja na sampuli kutoka kwa njia ya pumu ikiwa ni pamoja na sampuli wa damu, ambayo iliongeza upatikanji wa sampuli tofauti na kusaidia kuletwa kwa matokeo chanya ya antibodi mahususi katika utaratibu uliothibitishwa.

the sample will be stratified with 200 specimens for prepandemic survey (100 for monthly) in the following age groups: < 5 years, 5-17 years, 18-64 years, and 65 years or older.
sampuli hiyo itapangwa kwa chembe 200 kwa uchunguzi wa kabla ya janga (100 kwa kila mwezi) katika vikundi vifuatavyo vya umri: < miaka 5, miaka 5-17, miaka 18-64 na miaka 65 au zaidi.