Investment in treatment has become expensive therefore, many people would suggest that researches should spend time in making prevention of diseases rather than treatment. However, I believe that a cure for any disease will be better than just having preventive technique for the disease.
Finding a cure for any disease would be more effective than just having prevention. Medication for any ailment would help bring confidence among people. Recently, we saw with covid-19 even though, people were taking precautions there was rise in cases of covid-19 cases.
People with different diseases would always want to be cured rather than just take prevention. On any given day people with serious medical condition would like doctors or researches to find complete cure of the diseases. For example, any cancer patient will always have a doubt in mind even after chemotherapy.
However, there are certain conditions in which finding the cure is difficult. In such cases prevention is the last resort, but it does not mean that we not look for cure. In conditions like HIV cure has not been found yet, so people have to take preventions as a measure from getting into contact with the virus.
To conclude, I would always want to see a cure for any aliment rather than just having preventive measures. I hope we will be successful in finding the cure for most of the disease in near future. As long as, we strive to find the cure preventing any disease will be the only option. 
Investment in treatment has become expensive  
therefore
,  
many
  people
 would suggest that researches should spend time in making  
prevention
 of  
diseases
  rather
 than treatment.  
However
, I believe that a  
cure
 for any  
disease
 will be better than  
just
 having preventive technique for the disease.
Finding a  
cure
 for any  
disease
 would be more effective than  
just
 having  
prevention
. Medication for any ailment would  
help
 bring confidence among  
people
. Recently, we  
saw
 with  
covid-19
  even though
,  
people
 were taking precautions there was rise in cases of  
covid-19
 cases. 
People
 with  
different
  diseases
 would always want to  
be cured
  rather
 than  
just
 take  
prevention
. On any  
given
 day  
people
 with serious medical condition would like doctors or researches to find complete  
cure
 of the  
diseases
.  
For example
, any cancer patient will always have a doubt in mind even after chemotherapy. 
However
, there are certain conditions in which finding the  
cure
 is difficult. In such cases  
prevention
 is the last resort,  
but
 it does not mean that we not look for  
cure
. In conditions like HIV  
cure
 has not  
been found
  yet
,  
so
  people
  have to
 take  
preventions
 as a measure from getting into contact with the virus. 
To conclude
, I would always want to  
see
 a  
cure
 for any aliment  
rather
 than  
just
 having preventive measures. I hope we will be successful in finding the  
cure
 for most of the  
disease
 in near future. As long as, we strive to find the  
cure
 preventing any  
disease
 will be the  
only
 option.