pupal behaviour

[NKUMAR]

Felix A Vergara MD wrote:
> 
> I am a high school senior.  In biology II  we have a project.  We are raising
> drosophilas to study the genetic variations.  All what happened in my flask was
> pretty normal ( similar to my classmates ).  But now most of my pupas stayed on top
> of the food.  My colleagues' pupas are up the walls.  I am worried because I suspect
> that my experiment is going wrong.  Any body have seen this behaviour before?  Are
> my pupas dead? I will appreciate your answers and advices.  Thank you. Joe.
YOUR PUPAE ARE CONTAMINATED WITH A DEADLY VIRUS. EVACUATE YOUR CLASSROOM
AS SOON AS POSSIBLE. CONTACT THE CDC AND WAIT FOR FURTHER INSTRUCTION.