[问答题]
1.Outline the importance x nxz79h(:t/x l3a :mn(zo ek*yfv0rwvb)qs 0 of international cooperati styr1o5a7;idcwq3y-mxy6 ,xon in fighting infectious disear,7y 51wxqxd a6tocyy;3smi- ses.
2.Outline the role of monoclonal antibodies in home pregnancy tests.
3.Explain the specific immune response to a pathogen in terms of antibodies and lymphocytes.