Introduction
In Quarantine Zone: The Last Check, your ability to detect infections is literally the difference between survival and catastrophe. One missed infection can spread through your safe zone like wildfire, dooming everyone you’ve worked to protect.
This comprehensive guide will teach you everything about infection detection: tool mastery, symptom recognition, decision-making frameworks, and advanced techniques.
Understanding the Infection
The Virus Basics
The zombie virus in Quarantine Zone has specific characteristics:
- Incubation Period: 12-48 hours after infection
- Early Symptoms: Fever, coughing, discoloration
- Advanced Stage: Bite marks, severe fever, erratic behavior
- Point of No Return: 39°C+ body temperature typically indicates infection
Why Detection Matters
One infected survivor can:
- Infect 3-5 others in the safe zone within 24 hours
- Turn into a zombie if left untreated
- Compromise your entire checkpoint operation
- Cause mission failure
Your goal: 100% detection accuracy through systematic screening.
Your Detection Arsenal
Tool #1: UV Flashlight
Primary Function: Reveals hidden bite marks and infections invisible to naked eye
How It Works: The UV light causes infected tissue to fluoresce, revealing bite marks covered by clothing, early-stage infection discoloration, and hidden injuries survivors try to conceal.
Proper Usage Technique:
- Sweep from head to neck, check both arms, scan torso
- Hold light on each area for 2-3 seconds
- Maintain 6-12 inch distance for optimal detection
- Pay extra attention to normally covered areas
What to Look For:
- Green/Blue Glow: Indicates infected tissue
- Bright White Marks: Fresh bite marks (1-6 hours old)
- Yellow Discoloration: Early infection (6-24 hours)
- Dark Purple: Advanced infection (24+ hours)
Tool #2: Infrared Thermometer
Primary Function: Detects elevated body temperature from infection
Temperature Guidelines:
- 36-37°C (96.8-98.6°F): Normal - Safe to pass
- 37-38°C (98.6-100.4°F): Slightly elevated - Question further
- 38-39°C (100.4-102.2°F): High fever - Quarantine for observation
- 39°C+ (102.2°F+): Critical - Strong infection indicator
Important: Fever alone doesn’t confirm infection. Always combine with UV check and visual inspection.
Tool #3: Manual Scanner
Primary Function: Detect contraband, weapons, and hidden items
When Someone Has Suspicious Items:
- Pain medication → They might be hiding injury pain
- Antibiotics → Attempting self-treatment
- Weapons → Fear-driven behavior
The Systematic Screening Protocol
5-Step Detection Process
Step 1: Initial Visual Scan (10 seconds)
- Overall appearance check
- Clothing condition assessment
- Immediate red flags identification
Step 2: Interview (20-30 seconds)
- “Where are you coming from?”
- “Have you encountered any infected?”
- “Any injuries or illnesses to report?”
Step 3: UV Light Examination (30 seconds)
- Systematic body scan
- Special attention to commonly bitten areas
- Check under accessories and bandages
Step 4: Temperature Reading (10 seconds)
- Take infrared reading
- Compare against baseline
- Note unusual readings
Step 5: Decision Making (10-20 seconds)
- Evaluate all collected data
- Apply decision framework
- Execute: Pass, Quarantine, or Eliminate
Decision Framework
Green Light (Pass Through)
All Criteria Must Be Met:
- ✅ Temperature: 36-37°C
- ✅ UV Scan: Clean, no marks
- ✅ Visual: No symptoms
- ✅ Behavioral: Calm and cooperative
- ✅ Story: Consistent and believable
Yellow Light (Quarantine)
Any of These Present:
- ⚠️ Temperature: 37-39°C
- ⚠️ Minor injuries without infection signs
- ⚠️ Suspicious story but passing other tests
- ⚠️ Fever with non-infected UV scan
Red Light (Eliminate)
Any of These Confirm Infection:
- 🚨 UV shows glowing bite marks
- 🚨 Temperature: 39°C or higher
- 🚨 Visible zombie transformation signs
- 🚨 Advanced skin discoloration
The 48-Hour Quarantine Rule
Day 1 Check (24 hours):
- Re-take temperature
- New UV light examination
- Assess symptom progression
Day 2 Check (48 hours - CRITICAL):
- Final temperature reading
- Complete UV scan
- Make definitive decision
- Must not exceed 48 hours
Why 48 Hours Maximum: If someone infected stays longer, they risk turning into a zombie inside quarantine, infecting all other quarantine patients.
Common Mistakes & How to Avoid Them
❌ Mistake #1: Trusting Appearances
Problem: Assuming healthy-looking people are safe
Solution: Screen everyone identically, regardless of appearance
❌ Mistake #2: Skipping UV Checks
Problem: Relying only on temperature and visual inspection
Solution: UV light is mandatory for every single survivor
❌ Mistake #3: Sympathy Over Safety
Problem: Letting families through together without individual screening
Solution: Screen each person separately, even children
❌ Mistake #4: Rushing Inspections
Problem: Processing survivors too quickly under time pressure
Solution: Quality over speed - take your time with each person
Quick Reference Card
🔍 SCREENING CHECKLIST
- ☐ Visual inspection (skin, behavior, clothing)
- ☐ Interview (origin, contact, injuries)
- ☐ UV light scan (full body, hidden areas)
- ☐ Temperature reading (multiple if needed)
- ☐ Scanner check (contraband, weapons)
- ☐ Story consistency verification
- ☐ Decision: Pass / Quarantine / Eliminate
🚨 IMMEDIATE ELIMINATION IF:
- UV shows glowing bite marks
- Temp 39°C+ (102°F+)
- Visible transformation
- Violent behavior + symptoms
⚠️ QUARANTINE IF:
- Temp 37-39°C (98.6-102°F)
- Minor injuries
- Suspicious story
- Recent exposure
- Any uncertainty
✅ PASS IF:
- Clean UV scan
- Normal temperature
- No visual symptoms
- Consistent story
- Calm behavior
Conclusion
Infection detection in Quarantine Zone is both an art and a science. Master the tools, trust the process, and never compromise on thoroughness.
Your Three Principles:
- Every survivor gets full screening - No exceptions
- When uncertain, use quarantine - It’s safer than guessing
- Tools don’t lie - Trust UV and thermometer readings
The fate of humanity rests on your ability to catch every infection before it spreads. Stay vigilant, Checkpoint Officer.
Next Steps:
- 📖 Base Management Guide - Resource optimization and upgrades
- 📖 Beginner’s Guide - Essential tips for new players
- 📖 Defense Strategies - Combat tactics and zombie hordes
Related Guides
Quarantine Zone Beginner Guide - Essential Tips
Complete beginner's guide for Quarantine Zone. Learn checkpoint operations, survivor screening, infection detection, and base defense.
Quarantine Zone Base Management - Resources & Upgrades
Master base management in Quarantine Zone. Learn resource allocation, upgrade priorities, budget management, and facility optimization.