if (something) catches a cold, (something else) gets pneumonia(redirected from if something catches a cold, something else gets pneumonia)
if (something) catches a cold, (something else) gets pneumonia
If a person, group, or entity has a problem or experiences a negative situation, a related person, group, or entity will consequently have a worse problem or will experience a more negative situation. If Paris catches a cold, Europe gets pneumonia. Terrorism in France affects security throughout the continent.