Blue Plague
Zim's Base, day, inside
(We see GIR eating some chips as he sees Zim come down to the living room......WITH A SWOLLEN SKULL, AND VEINS ACROSS HIS HEAD.)
GIR: Zim w-what's happening
https://www.youtube.com/watch?v=vmBdbwA9Z6A Zim: GIR I got the Blue Fever, It's getting pretty weird.
GIR: Is that some kind of Irken cold.
Zim: Well yes.......But don't try to ask if I'm aging!
GIR: MMMMM this chips and oil taste good, so where are you going.
Zim: the store but I can't attract too Much attention, I have to think of a new disguise this time HMM.
Super Market, day, inside
https://www.youtube.com/watch?v=g_59niEk0ss (We see Zim shopping alone dressed as a......BEAK DOCTOR a grocery store clerk walks up.)
Zim: Hello Miss is this pink stuff Motrin?
Store Clerk: Yes it is sir. Why are you dressed as a BEAK DOCTOR.
Zim: Thank you *Sneezes*. I have my agenda.
(We see a type of Orange liquid hit the wall it's.........SNOT........IT THEN TURNS BLUE.)
https://www.youtube.com/watch?v=gICYvF6_jPU&feature=related Zim: well let's see I got the cures.
(Zim walks out of the store, as the blue snot.....spreads across)
Zim's base, day, inside
https://www.youtube.com/watch?v=50uUuVyq5m4 (We Zim Mixing some Chicken soup, Motrin and Fish oil.)
GIR: Hey Zim these paint chips taste good, what's the side effect of blue fever.
Zim: Well Swollen skull, blue tinted eyes, and a sore esophagus. It only lasts 48 hours without medicine.
(Zim then drinks the soup and his appearance changes back to normal.)
Zim: SO I have conquered this cold I'm going back to work.
https://www.youtube.com/watch?v=gEEZnVjfyPY News man: BREAKING NEWS!!!! a type of sicknesses known as the blue plague has spread across the city. It's not fatal but it is cautioned that someone should avoid it all times.
Zim: can't have the people controlled being sick we have to cure them!
(We see Zim putting goggles, a hat and some gloves., as the two step outside)
Hospital, inside, day
Zim: All right people medicine time! Say You're prayers you virus or...........well you're prayers are over.
GIR: I love this job.
https://www.youtube.com/watch?v=v8NaZ4lqTeg (Zim and GIR proceed to spray anyone sick they see with the chicken soup/Motrin/Fish oil mixture, this goes on for quiet along time until they find/cure everyone.)
Zim: I'm going to sell this stuff I can make a profit.
GIR: That was only one hospital!?
Zim: Don't worry I Have advertisers.
Advertisement
(We see two robots one resembles a chicken, the other resembles a tank.)
Robot Tank: We’re gonna be giving’ ya good advice and you’re gonna take it and LIKE it, ya big bunch of kids!
Robot Chicken: You can't Live without this medicine so demand you're parents for it.
Robot Tank: you don't see me crying about sicknesses and stuff.
Robot Chicken: Be healthy be happy, this is tough love
THE END
TRIVIA
. People under blue fever looks like this

.The mask Zim wears at the beginning looks like this
http://upload.wikimedia.org/wikipedia/commons/5/5d/Doktorschnabel_430px.jpg . the clothes Zim wears towards the end looks this

. the two robots that appear at the ending are from this segment
https://www.youtube.com/watch?v=FuzzVnjL0GE&feature=related