आथिखाल तिकाफोरनि आंखालनि थाखाय, नायबिजिरग्रा आरो मावथांखिदागिरिफोरा बेसेन, खाजना मुलामफाफोर( incentives) आरो जौगालु बाजार सतबांसाफोरखौ सरजाबफानानै तिका जौगानायनि गोदान रांखानथि नमुना(models)फोर जौगाहोगासिनो।
Because of the limitations of current vaccines, researchers and policymakers are promoting new economic models of vaccine development including prizes, tax incentives and advance market commitments.