Common European Adder

Most famous and widespread venomous snake in Europe.

GenusVipera

RegionEurope, AsiaEurope, Western Asia

Photo: Benny Trapp · Source: Wikimedia Commons · License: CC BY 3.0

Photo: Benny Trapp · Source: Wikimedia Commons · License: CC BY 3.0

Common European Adder

Danger Score

Final Danger Score

Venom Core

Lethality weighted 55% (potency × yield). Clinical weighted 45% (real-world CFR).

0.55 × 29 + 0.45 × 1221.4

Modifiers

Multiplicative scalers - amplify or reduce existing danger, can't create it from nothing.

× Speed (1.01)21.6

× Delivery (1.00)21.6

× Encounter (0.86)18.5

Speed = antivenom window. Delivery = fang efficiency. Encounter = exposure × temperament.

Score19

Type

NeurotoxicAffects the nervous system; disrupts nerve-muscle communication and can cause paralysis or respiratory failure.

Venom Yield

Low

Venom Speed

Quick

Delivery Method

Hinged front fangs

Potency (SC Equivalent)

1.650mg/kg LD50

Max Dry Yield

12mg dry

Fatality (Untreated)

0-1%

WHO Importance

Local Effects

Pain at bite site

Neurological

Paralysis

Gastrointestinal

Nausea or vomiting

Causes of Death

Respiratory failure