जिवसाफोर आरो बिसोरनि फिसिग्राफोरा जयै फारिजौगानायनि थाखाय फिसिग्राफोरा लासैयै जिवसाफोरनि थाखाय होबथाग्रा जाबोयो ।
Because the microbes and their hosts have co evolved the hosts gradually become resistant to the microorganisms .