Quarantine Zone: The Last Check puts you right in the middle of a desperate border checkpoint where every survivor could carry the virus that ends humanity. Spotting Quarantine Zone: The Last Check Symptoms fast and accurately decides if you let someone through to safety or send them straight to quarantine or liquidation.
In this article you'll learn exactly how to identify every symptom using the tools in your station, what each one means for safe entry or rejection, and practical tips that help you nail every inspection. While you're mastering these checks, Lootbar is a solid spot to grab in-game resources or Steam Keys.
Quarantine Zone: The Last Check Symptoms Types
Quarantine Zone: The Last Check Symptoms fall into clear groups:
- Safe (green, let them pass),
- Sick or infected (orange, quarantine them),
- Full infected (red, liquidate immediately).
You start with basic visual checks and unlock better tools as your zone levels up. Missing any symptom in Quarantine Zone: The Last Check ruins your score, and letting an infected person slip through can trigger outbreaks that tank your campaign. I always scan head to toe, front and back, and double-check with the right tool because skin tones and lighting can hide things.
Appearance Symptoms: Your Immediate Visual Scan
Appearance symptoms in Quarantine Zone: The Last Check are the first ones you catch with your eyes and the flashlight. There are 19 in total, and they show up right from the early campaign shifts. These are the most common and often the quickest to spot.
Here’s the full breakdown I use every time:
- Safe (green – let them pass): Yellow Eyes, Freckles, Herpes, Red Skin, Bruises, Nosebleed
- Sick or Infected (orange – quarantine): Conjunctivitis, Skin Rash, Pale Skin, Red Bruise, Skin Cuts, Mouth Bleeding, Aggression
- Full Infected (red – liquidate): Red Eyes, Green Skin (can look yellowish on some skin tones), Bite Mark, Necrosis, Eye Pus, Nose Pus
I always hit the flashlight right away to light up eyes and hidden marks under clothes. Later on, the scanner upgrade with Clear View helps separate real symptoms from dirt or old blood. Skin tone changes how pale or red things look, so I zoom in and compare against my unlocked list. If something feels new, I mark it as unknown and send the survivor straight to the lab so it gets added to my permanent tracker.
Thermopulsometer: Quick Vitals Check
Once unlocked, point the Thermopulsometer at the survivor for instant pulse and temperature readings. Anything under 120 pulse and below 37°C stays in the safe zone.
The exact readings break down like this:
- Sick or Infected (orange): Elevated Temp (37-41°C), Elevated Pulse (120-180)
- Full Infected (red): High Temp (over 41°C), Extreme Pulse (over 180)
I listen for sneezing or hiccuping at the same time because those can bump the numbers even in healthy people. If the survivor only has safe symptoms plus a sneeze and mild fever, I usually clear them. But any orange or red signs already showing? Straight to quarantine for monitoring. The Color Indicator upgrade makes this tool lightning fast during rush hours.
Hammer: Reflex Testing Done Right
Use the hammer on arms for the clearest results (legs work too but arms are easier). Do all appearance checks first so you don’t mistake hammer marks for bruises.
The reflex symptoms are straightforward:
- Safe (green): Absent Reflex
- Sick or Infected (orange): Hyperaggressive Reflex
- Full Infected (red): Crossed Reflex
Some survivors show a slack jaw that isn’t listed officially but usually pairs with reflex issues or infection. I note it mentally and double-check everything else. This one feels satisfying when your timing is spot on.
Stethoscope: Lung and Breath Analysis
The stethoscope lights up the lungs bright yellow on screen. Always check front and back – no skipping.
Key symptoms here:
- Safe (green): Sickly Breath
- Sick or Infected (orange): Nonspecific Respiration
- Full Infected (red): Infected Breath (that low growling sound)
Coughing isn’t an official symptom but almost always points to a problem, so I treat it as a warning flag. I never skip the back check because some issues only show up there. This tool saved me on my first hidden infection when the visual scan looked completely clean.
Syringe Analyzer: Definitive Infection Test
This is the big one that unlocks on Day 11 (right after your second evacuation) and becomes the tool I save for the toughest calls. Hold the syringe against the survivor for about one second — the little screen gives you a 100% accurate yes/no answer on whether they’re actually carrying the virus.
- Green screen = Not infected / Safe to let through (even if they have orange symptoms — they’re just sick, not turning)
- Red screen = Full infected → liquidate immediately
Each syringe is single-use, so don’t waste them. You refill by sending 5 survivors to the Science Truck during evacuation (+1 syringe) or by keeping a captured zombie alive until extraction day (+1 extra).
Matioscope: Deep Eye Inspection
The matioscope zooms right into the optic nerve. Use Q and E to peel layers and WASD to focus on tiny organisms.
Safe findings include:
- Ocular Spicular Bacterium
- Thread Cluster
- Ocular Helminth
- Adenoviral Body
Sick or infected ones are Phage Complex and Chromatic Staphylococcus. Full infected show Necrotic Plume and Corneal Infiltrate. If the survivor squints hard or reacts badly to the flashlight, I quarantine them immediately. This tool feels like its own little puzzle and helped me unlock some of the trickiest symptoms through lab research.
X-Ray Scanner: Internal Organ Check
X-ray shows organ problems and hidden contraband. Healthy organs look pinkish-red with one yellowish one on the left side.
The internal symptoms break down as:
- Safe (green): Fatty Hepatosis, Internal Bleeding
- Sick or Infected (orange): Color Differences (bright pink or purple)
- Full Infected (red): Moldy Organ (bright blue), Organ Necrosis (dark or black)
Survivors sometimes hold their stomachs or bend over when something internal is wrong. I tag any suspicious items and let my helper remove them before final decision. Zombie parts inside count as full biohazard.
UV Tower and Baggage Search: Hidden Contaminants
Hit the UV button next to the baggage area. Green vapor means safe.
UV symptoms are:
- Safe (green): UV Vapor
- Full Infected (red): UV Contraband, UV Symptom (spots on items or the person)
Open every bag with E and search the table. Confiscate weapons and drugs for bonus rewards, but zombie parts mean immediate liquidation no matter what. Later the X-ray catches internal contraband the same way. I always run UV on every bag because it catches things regular searches miss. Gold sparkling collectibles are worth grabbing for extra cash even if they’re clean.
Conclusion:
Nailing every symptom in Quarantine Zone: The Last Check turns those long checkpoint shifts into solid victories that keep the safe zone alive and growing. I still jump into practice runs because the virus keeps mutating and throws new curveballs. If you’re looking for the Quarantine Zone: The Last Check Steam Key, it’s available through Lootbar and I go with them every time for the reliable delivery and fair pricing that gets me back into the game without any waiting around.
