General Info and Tips
Chapter 1: The Farm
Chapter 2: The Town
Chapter 3: The Apartment
Chapter 4: The Park
Chapter 5: The School
Chapter 6: The House

Ask for help in the comments below!

[gimg]/Infected-Twin-Vaccine/images/041-chapter-3-theresa-window.jpg[/gimg][LIST] [item]Click on the window up above and you'll see Theresa. [/item] [item]Click on the dumpster to zoom in. [/item] [item]Take the STAINED GLASS and the PLUNGER. [/item] [item]Go to the left.[/item] [/LIST] [gimg]/Infected-Twin-Vaccine/images/042-chapter-3-freezer-key.jpg[/gimg][LIST] [item]Read the writing on the wall. [/item] [item]Use the CROSSBOW on the window. [/item] [item]Click on the broken window to zoom in. [/item] [item]Take the FREEZER KEY. [/item] [item]Click on the freezer and use the FREEZER KEY to open it. [/item] [item]Take the BASKETBALL. [/item] [item]Go back one screen. [/item] [/LIST] [gimg]/Infected-Twin-Vaccine/images/043-chapter-3-basketball-net.jpg[/gimg][LIST] [item]Use the BASKETBALL on the net. [/item] [item]Go back to the left.[/item] [/LIST] [gimg]/Infected-Twin-Vaccine/images/044-chapter-3-freezer-bulb.jpg[/gimg][LIST] [item]Click on the freezer to zoom in. Take the LIGHT BULB and the 7 BUTTON. [/item] [item]Go back one screen.[/item] [/LIST] [gimg]/Infected-Twin-Vaccine/images/045-chapter-3-front-door.jpg[/gimg][LIST] [item]Click on the door on the first floor to zoom in. [/item] [item]Use the LIGHT BULB on the socket that's above the door. [/item] [item]Click on the light switch to turn it on. [/item] [item]See the combination 236926. [/item] [item]Close the view and go back to the left.[/item] [/LIST] [gimg]/Infected-Twin-Vaccine/images/046-chapter-3-suitcase.jpg[/gimg][LIST] [item]Use the CROSSBOW on the crate above. [/item] [item]Click on the suitcase and enter the combination 236926.[/item] [item]Take the COIN and the STAINED GLASS. [/item] [item]Go back one screen.[/item] [/LIST] [gimg]/Infected-Twin-Vaccine/images/047-chapter-3-stained-glass.jpg[/gimg][LIST] [item]Click on the door again to zoom in. [/item] [item]Use the STAINED GLASS on the empty slots. [/item] [item]Go inside the apartment.[/item] [/LIST] [gimg]/Infected-Twin-Vaccine/images/048-chapter-3-inside-apartment.jpg[/gimg][LIST] [item]Take the MIRROR PIECE and the COIN. [/item] [item]Click on the bulletin board to zoom in. [/item] [item]Take the SPADE KEY and JANES ID CARD. [/item] [item]Close that view. [/item] [item]Click on the door. [/item] [item]Take the CAR PHOTO. [/item] [item]Go to the left to start a hidden object scene. [/item] [/LIST] [gimg]/Infected-Twin-Vaccine/images/049-chapter-3-kitchen-hidden-object-scene-a.jpg[/gimg][LIST] [item]First find all the items in the scene that are in white. [/item] [item]Click on the items tab at the bottom to open it.[/item] [/LIST] [gimg]/Infected-Twin-Vaccine/images/050-chapter-3-kitchen-hidden-object-scene-b.jpg[/gimg][LIST] [item]Use the DART on the dartboard. [/item] [item]Take the NOTE PAPER. [/item] [item]Click on the watch and use the NOTE PAPER to set the time. [/item] [item]Take the BATTERY. [/item] [item]Use the BATTERY on the flashlight. [/item] [item]Take the FLASHLIGHT. [/item] [item]Use the FLASHLIGHT to light up the cupboard.[/item] [/LIST] [gimg]/Infected-Twin-Vaccine/images/051-chapter-3-kitchen-hidden-object-scene-c.jpg[/gimg][LIST] [item]Take the OPEN BUTTON. [/item] [item]Use the OPEN BUTTON on the microwave. [/item] [item]Use the ICE CUBE TRAY on the open microwave. [/item] [item]As soon as the microwave opens, take the WATER.[/item] [item]Use the FLOWER SEEDS in the pot. [/item] [item]Use the WATER on the pot. [/item] [item]Take the KEY. [/item] [item]Use the KEY on the cabinet to unlock it.[/item] [/LIST] [gimg]/Infected-Twin-Vaccine/images/052-chapter-3-kitchen-hidden-object-scene-d.jpg[/gimg][LIST] [item]Take the GLUE. [/item] [item]Use the GLUE on the broken teacup then click to fix it. [/item] [item]Place the 4 teacups on the hooks and this will break the shelf. [/item] [item]Take the CAR KEYS. [/item] [item]Go up the stairs.[/item] [/LIST] [gimg]/Infected-Twin-Vaccine/images/053-chapter-3-stairs.jpg[/gimg][LIST] [item]Take the MIRROR PIECE on the stairs. [/item] [item]Click on the doll on the right to zoom in. [/item] [item]Take the CAR PHOTO and the COIN. [/item] [item]Go up the stairs.[/item] [/LIST] [gimg]/Infected-Twin-Vaccine/images/054-chapter-3-stair-landing.jpg[/gimg][LIST] [item]Take the COIN and the MIRROR PIECE. [/item] [item]Go into the door on the left to the bathroom.[/item] [/LIST] [gimg]/Infected-Twin-Vaccine/images/055-chapter-3-bathroom-plunger.jpg[/gimg][LIST] [item]Take the CAR PHOTO in the window. [/item] [item]Click on the toilet to zoom in. [/item] [item]Use the PLUNGER on the toilet. [/item] [item]Click to flush the toilet. [/item] [item]Go back one and then go into the door on the right to the bedroom. [/item] [/LIST] [gimg]/Infected-Twin-Vaccine/images/056-chapter-3-bedroom.jpg[/gimg][LIST] [item]Take the MIRROR PIECE. [/item] [item]Pick up the phone and watch the video. [/item] [item]Click on the photo hanging on the wall to zoom in. [/item] [item]Take the MIRROR PIECE. [/item] [item]Click on the window on the right and take the CAR PHOTO.[/item] [item]Click on the window on the left and take the COIN and the MIRROR PIECE.[/item] [item]Go back one screen. [/item] [/LIST] [gimg]/Infected-Twin-Vaccine/images/057-chapter-3-mirror-hall.jpg[/gimg][LIST] [item]Click on the mirror on the wall to the right. [/item] [item]Use the MIRROR PIECES on it to start a mini-game. [/item] [item]Put the pieces of the mirror back to complete the mirror. [/item] [item]See the screenshot for the solution.[/item] [/LIST] [gimg]/Infected-Twin-Vaccine/images/058-chapter-3-mirror-puzzle.jpg[/gimg][LIST] [item]Go back down two screens so that you are on the first floor again.[/item] [/LIST] [gimg]/Infected-Twin-Vaccine/images/059-chapter-3-board-shower-handle.jpg[/gimg][LIST] [item]Click on the open door to zoom in. [/item] [item]Take the SHOWER HANDLE. [/item] [item]Click on the bulletin board. [/item] [item]Use the CAR PHOTOS and the CAR KEYS on the board to start a mini-game. [/item] [item]You need to match the keys to the right car. [/item] [item]See the screenshot for the solution. [/item] [item]You will receive the CAR STARTER.[/item] [item]Go back one screen so you are outside the apartment again.[/item] [/LIST] [gimg]/Infected-Twin-Vaccine/images/060-chapter-3-board-car-puzzle.jpg[/gimg][LIST] [item]Use the CAR STARTER on the car on the right. [/item] [item]Move through the car. [/item] [/LIST] [gimg]/Infected-Twin-Vaccine/images/061-chapter-3-car-keys.jpg[/gimg][LIST] [item]Take the STEP LADDER on the right. [/item] [item]Click under the stairs to start a hidden object scene.[/item] [/LIST] [gimg]/Infected-Twin-Vaccine/images/062-chapter-3-step-ladder.jpg[/gimg][LIST] [item]Find all the rooster emblem pieces in the scene. [/item] [item]There are 12 in all. [/item] [item]You will receive the ROOSTER EMBLEM. [/item] [item]Go back and then to the left again.[/item] [/LIST] [gimg]/Infected-Twin-Vaccine/images/063-chapter-3-rooster-emblem.jpg[/gimg][LIST] [item]Click on the door on the right. [/item] [item]Use the ROOSTER EMBLEM on the door. [/item] [item]Take the SHEARS. [/item] [item]Go back one and then through the car.[/item] [/LIST] [gimg]/Infected-Twin-Vaccine/images/064-chapter-3-rooster-emblem-door.jpg[/gimg][LIST] [item]Click on the stairs to the left to zoom in. [/item] [item]Use the SHEARS on the rope to cut it. [/item] [item]You will receive the ROPE. [/item] [item]Take the WOOD PLANKS.[/item] [/LIST] [gimg]/Infected-Twin-Vaccine/images/065-chapter-3-stairs-rope.jpg[/gimg][LIST] [item]Click on the stairs on the right to zoom in. [/item] [item]Use the WOODEN PLANKS. [/item] [item]Go up the stairs. [/item] [/LIST] [gimg]/Infected-Twin-Vaccine/images/066-chapter-3-stairs-planks.jpg[/gimg][LIST] [item]Once you get up the stairs, you'll equip the crossbow. [/item] [item]Shoot the three windows two times each to break them. [/item] [item]Once you break the glass on the two smaller windows, shoot the latches on the top to knock down the items. [/item] [item]Go back down the stairs.[/item] [/LIST] [gimg]/Infected-Twin-Vaccine/images/067-chapter-3-crossbow-shots.jpg[/gimg][LIST] [item]Click on the door to the cellar to zoom in. [/item] [item]Take the HAMMER AND CHISEL and the GRAPPLING HOOK.[/item] [item]Go up the stairs on the right. [/item] [/LIST] [gimg]/Infected-Twin-Vaccine/images/068-chapter-3-grappling-hammer-chisel.jpg[/gimg][LIST] [item]Use the GRAPPLING HOOK on the window on the right by the door. [/item] [item]Go into the room.[/item] [/LIST] [gimg]/Infected-Twin-Vaccine/images/069-chapter-3-grappling-hook.jpg[/gimg][LIST] [item]Take the COIN and the NOTEBOOK in front of you. [/item] [item]Click on the microscope on the left to zoom in. [/item] [item]Use the HORNET SAMPLE. [/item] [item]Take the syringe and use it on the HORNET SAMPLE, then place it on the slide. [/item] [item]Place the slide on the microscope to start a mini-game. [/item] [/LIST] [gimg]/Infected-Twin-Vaccine/images/070-chapter-3-microscope.jpg[/gimg][LIST] [item]Place the molecules in the empty areas on the board. [/item] [item]They must touch at least one other molecule with a matching color. [/item] [item]See the screenshot for the solution.[/item] [/LIST] [gimg]/Infected-Twin-Vaccine/images/071-chapter-3-microscope-game.jpg[/gimg][LIST] [item]You will receive the GENE PATTERN. [/item] [/LIST] [gimg]/Infected-Twin-Vaccine/images/072-chapter-3-gene-pattern-puzzle.jpg[/gimg][LIST] [item]Click on the panel that's on the right wall to zoom in. [/item] [item]Use the GENE PATTERN on the panel. [/item] [item]Click on the slots to make them match the GENE PATTERN. [/item] [item]See the screenshot for the solution. [/item] [item]Take the HEART KEY. [/item] [item]Go back three screens and enter the apartment again.[/item] [item]Go up the stairs to the landing.[/item] [/LIST] [gimg]/Infected-Twin-Vaccine/images/073-chapter-3-tweezers.jpg[/gimg][LIST] [item]Use the STEP LADDER on the floor beneath the pipe. [/item] [item]Click on the pipe to zoom in. [/item] [item]Take the TWEEZERS. [/item] [item]Go into the bathroom. [/item] [/LIST] [gimg]/Infected-Twin-Vaccine/images/074-chapter-3-bathroom-shower-handle.jpg[/gimg][LIST] [item]Click on the faucet. [/item] [item]Use the SHOWER HANDLE. [/item] [item]Take the PAINT SCRAPER from the tub. [/item] [item]Go back one screen.[/item] [/LIST] [gimg]/Infected-Twin-Vaccine/images/075-chapter-3-crossbow-tiles.jpg[/gimg][LIST] [item]Use the CROSSBOW on the spot on the wall. [/item] [item]Go back to the bathroom.[/item] [/LIST] [gimg]/Infected-Twin-Vaccine/images/076-chapter-3-red-gems.jpg[/gimg][LIST] [item]Click on the tiles that are broken. [/item] [item]Take the RED GEM. [/item] [item]Go to the bedroom. [/item] [/LIST] [gimg]/Infected-Twin-Vaccine/images/077-chapter-3-bedroom-photo.jpg[/gimg][LIST] [item]Click on the photo on the wall to zoom in. [/item] [item]Use the TWEEZERS on the top left corner. [/item] [item]Take the CLUB KEY. [/item] [item]Go back downstairs.[/item] [/LIST] [gimg]/Infected-Twin-Vaccine/images/078-chapter-3-diamond-key.jpg[/gimg][LIST] [item]Click on the door. [/item] [item]The diamond key will float within reach. [/item] [item]Take the DIAMOND KEY. [/item] [item]Go back to the stairs.[/item] [/LIST] [gimg]/Infected-Twin-Vaccine/images/079-chapter-3-4-keys.jpg[/gimg][LIST] [item]Click on the doll on the stairs to zoom in. [/item] [item]Use the RED GEM on the doll. [/item] [item]Click on the wall on the left to zoom in. [/item] [item]Use the PAINT SCRAPER to get rid of the paint. [/item] [item]Use the DIAMOND KEY, the CLUB KEY, the SPADE KEY, and the HEART KEY in the correct spots. [/item] [item]Take the TILE PIECE. [/item] [item]Go back two screens, through the car an to the other side.[/item] [/LIST] [gimg]/Infected-Twin-Vaccine/images/080-chapter-3-cellar-door.jpg[/gimg][LIST] [item]Click on the cellar door to zoom in. [/item] [item]Use the TILE PIECE to start a mini-game. [/item] [item]You need to arrange the tiles in order to complete the picture. [/item] [item]Clicking two tiles will swap their positions. [/item] [item]See the screenshot for the solution. [/item] [item]Take the FIRE HOSE. [/item] [item]Go back two screens to the alleyway.[/item] [/LIST] [gimg]/Infected-Twin-Vaccine/images/081-chapter-3-wall-writing-alley.jpg[/gimg][LIST] [item]Click on the writing on the wall on the right. [/item] [item]Use the HAMMER AND CHISEL on the wall. [/item] [item]Take the BIG WRENCH. [/item] [item]Go back one screen, then up to the car on fire.[/item] [/LIST] [gimg]/Infected-Twin-Vaccine/images/082-chapter-3-car-fires.jpg[/gimg][LIST] [item]Click on the fire hydrant on the right to zoom in. [/item] [item]Use the FIRE HOSE on the hydrant. [/item] [item]Use the BIG WRENCH to tighten it. [/item] [item]This will start a mini-game. [/item] [item]Simply point the hose at the fires and click the left mouse button to extinguish them. [/item] [item]Once all three fires are extinguished, click on the car door to move it. [/item] [item]Click on the left to move under the bridge. [/item] [/LIST] [gimg]/Infected-Twin-Vaccine/images/083-chapter-3-under-bridge.jpg[/gimg][LIST] [item]Click on the man to talk to him. [/item] [item]Click on the ground right beside him to zoom in. [/item] [item]Take the DRIVER'S LICENSE, the MANHOLE X, and the COIN. [/item] [item]Go back up to the bridge and move forward.[/item] [/LIST] [gimg]/Infected-Twin-Vaccine/images/084-chapter-3-otherside-bridge.jpg[/gimg][LIST] [item]Take the COIN. [/item] [item]Click on the grate to zoom in. [/item] [item]Take the TACKLE BOX KEY. [/item] [item]Click on the lamppost that's on the ground. [/item] [item]Take the MANHOLE R. [/item] [item]Go back one screen. [/item] [/LIST] [gimg]/Infected-Twin-Vaccine/images/084-chapter-3-otherside-bridge.jpg[/gimg][LIST] [item]Click on the car to zoom in. [/item] [item]Use the TACKLE BOX KEY on the TACKLE BOX to open it. [/item] [item]Take the FISH HOOK. [/item] [item]Go back one screen.[/item] [/LIST] [gimg]/Infected-Twin-Vaccine/images/086-chapter-3-manhole-cover.jpg[/gimg][LIST] [item]Click on the manhole cover to zoom in. [/item] [item]Use the MANHOLE R and the MANHOLE X so that it spells Oxford. [/item] [item]Click to remove the manhole cover. [/item] [item]Take the FISHING ROD. [/item] [item]Go back one and then forward to the vending machine.[/item] [/LIST] [gimg]/Infected-Twin-Vaccine/images/087-chapter-3-vending-bird-seed.jpg[/gimg][LIST] [item]Use the 7 BUTTON on the vending machine. [/item] [item]Use the coins on the coin slot. [/item] [item]Press 17 to get the BIRD SEED. [/item] [item]Go back under the bridge. [/item] [/LIST] [gimg]/Infected-Twin-Vaccine/images/088-chapter-3-lake-boot.jpg[/gimg][LIST] [item]Click on the man to talk to him. [/item] [item]Use the FISHING ROD on the lake. [/item] [item]Use the FISH HOOK on the FISHING ROD. [/item] [item]This will start a mini-game. [/item] [item]You will need to lower the hook to get the BOOT. [/item] [item]Don't let the boot touch a fish. [/item] [item]Use the BOOT on the man. [/item] [item]You will receive a LANTERN (UNLIT). [/item] [item]Go back two screens, through the alley, back to the screen in front of the apartment.[/item] [/LIST] [gimg]/Infected-Twin-Vaccine/images/089-chapter-lantern-lit.jpg[/gimg][LIST] [item]Use the LANTERN(UNLIT) on the fire on the stairs to light it. [/item] [item]You will now have the LANTERN (LIT).[/item] [item]Go back two screens, then move forward two screens and watch the cut scene. [/item] [/LIST]

General Info and Tips
Chapter 1: The Farm
Chapter 2: The Town
Chapter 3: The Apartment
Chapter 4: The Park
Chapter 5: The School
Chapter 6: The House

Ask for help in the comments below!