Uhura Is All Right (The Immunity Syndrome)

KIRK: Hold present course. Slow to warp one. 
KYLE: Warp factor one, sir. 
KIRK: Mister Chekov, prepare to launch a telemetry probe into that zone. Direct computer feed to Mister Spock. 
CHEKOV: Aye, sir. Probe ready. Switching data feed to library computer. 
KIRK: Launch probe. 
CHEKOV: Probe launched, sir. 
(A high pitched sound comes over the speakers.) 
KIRK: What was that? 
UHURA: The telemetry probe, sir. There's no signal from it. 
KIRK: Speculation, Spock. 
SPOCK: I have none, Captain. Insufficient data. 
(Chekov is still groaning and Uhura loses her balance.) 
SPOCK: Lieutenant. 
UHURA: I'm just dizzy. I'll be all right. I'm fine, sir. 
MCCOY [OC]: Sickbay to Captain Kirk. McCoy here. 
KIRK: Kirk here. What is it? 
MCCOY [OC]: I'm getting reports from every deck. Half the people on this ship just fainted. 
KIRK: Uhura almost did. She says she's all right.