id	keyword
ajlm-2514	samples
ajlm-2514	covid-19
ajlm-2514	nigeria
ajlm-2514	testing
ajlm-2514	pooling
ajlm-2514	pcr
ajlm-2514	state
ajlm-2514	study
ajlm-2514	karu
ajlm-2514	nasarawa
ajlm-2514	values