<prompt> Translate the following text to SwahiliThe best available estimate of WTP to avoid a case of chronic bronchitis CB comes from Viscusi, et al.  <response>: Utafiti wa WTTP unaoweza kuepukwa kwa sababu ya ugonjwa wa bronchitis unaosababishwa na ugonjwa wa bronchitis unaoitwa Viscus et al. 