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No, the pneumonic plague is not truly airborne in the way highly contagious viruses like COVID-19 or measles are. Instead, health experts classify it as droplet-transmissible, meaning it travels through heavier respiratory particles.

Here is how the transmission actually works:
• Close Contact Required: The bacteria (Yersinia pestis) spread when an infected person or animal coughs or sneezes, throwing out respiratory droplets. Because these droplets are heavy, they do not hang suspended in the air for long periods or drift across rooms; they generally fall to the ground within a radius of 3 to 6 feet

Face-to-Face Transmission: You typically have to be in direct, prolonged, face-to-face contact with someone who is actively sick to breathe in the bacteria.

Pneumonic plague symptoms appear rapidly, typically within 1 to 4 days after exposure to the bacteria. Because it attacks the lungs, the illness progresses very quickly and resembles severe, fast-moving pneumonia.

Early Symptoms

The infection usually begins suddenly with flu-like signs:
• High fever and chills
• Severe headache
• Generalized weakness and body aches
• Rapid heart rate

Advanced Respiratory Symptoms

Within 24 hours of the initial signs, the infection targets the lungs, causing:
• A severe cough, which quickly begins producing watery, frothy sputum tinged with bright red blood.
• Shortness of breath and rapid, shallow breathing.
• Chest pain, which can worsen when breathing in or coughing.
• Respiratory failure and shock if treatment is not started immediately.
Note: If treated with standard antibiotics within the first 24 hours of symptoms appearing, the infection is highly curable.