How to use the Laboratory in Quarantine Zone: The Last Check

The Laboratory is one of the more advanced features in Quarantine Zone: The Last Check, allowing you to research and discover new symptoms.

Symptoms are key to helping you figure out who is infected and who isn’t. When you unlock more items, you’ll be able to look for different symptoms. However, you’ll also end up with survivors who have unidentified symptoms. That’s where the Laboratory comes in.

How to find new symptoms using the Laboratory in Quarantine Zone: The Last Check

The first task is to look for survivors with completely new symptoms. Once you find one, notice the symptoms they have (both known and unknown). Then, assign them to the Laboratory and follow them there.

When you have multiple survivors with unknown symptoms, you can make some wait in Quarantine. Survivors will always die when you put them in the Laboratory to extract their organs.

How to use the Laboratory in Quarantine Zone: The Last Check

Once you have sent someone to the lab, you’ll find them in a glass cage. Go over to the computer near the cage, and you’ll be able to extract their organs. The infected organs will be highlighted in green, but other organs can block them.

You’ll need to use the laser to destroy the blocking organs. They will be highlighted in yellow. However, don’t destroy any organs highlighted in red. That will automatically fail the process and remove all bonuses you could have obtained.

Once you’ve a clear path to the unblocked organ, you can press the extract button to take it out. This will automatically kill the survivor. The next task is to analyze the organ.

Pick up the extracted organ and drop it in the sample collector. You’ll need to keep holding your LMB while carrying the organ. Click on the collector to start the process. Once done, you’ll get a test tube with organ materials. Put the tube in the analyzer, start the machine, and wait for the results to arrive.

If the survivor was indeed infected, you’ll have a new symptom to check. If not, the process will be a failure, and you’ll end up killing a survivor for no reason. Oops!

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The Hi, Doggy quest not only has a funny name, but it’s a rather interesting task to complete in Quarantine Zone: The Last Check.

The Hi, Doggy is a relatively early game quest that you can unlock on day 10. It’s a core campaign quest, so there’s no way of skipping it (unless you’re playing in the Endless mode). This guide will help you figure out how to feed your zombie.

How to start Hi, Doggy quest in Quarantine Zone: The Last Check

The quest begins at the start of day 10 when the major briefs you about what needs to be done. When you’re in the early game, there’s not much you can do with a zombie in Quarantine. However, this quest will introduce you to the Cage in the Laboratory.

The Cage can contain an undead and allow you to study for research. You’ll find the Cage to the right of the main lab tent (from where you can discover new symptoms). Your next task is to feed the zombie. Head straight from the lab gates, and you’ll end up in front of the locked zombie.

How to feed the zombie in Hi, Doggy quest

This task is pretty simple. Go to the Liquidation zone, where you send the infected to be chopped. You’ll find a marked area by the pile of bags. Pick up a body bag, put it on the card, and go back to the laboratory tent. If you can’t pick up the body, chances are that the cart isn’t close enough. Interact with the cart and bring it closer to the body bags.

Park the cart next to the Cage, and interact with the body bag carrying the corpse. Pick it up, and put it in the Cage, and the zombie will start to eat. This will complete the Hi, Doggy quest. Make sure to put the cart in the highlighted zone so that the corpse can be fed to the zombie trapped inside.

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