It has a wide host range and is highly lethal, leading to mortality rates of 100% within days.

By contrast, yellow fever, which is considered a highly lethal virus, kills only about one in twenty patients once they reach hospital.

Several highly lethal viral pathogens are members of the Filoviridae.

Highly lethal in an overdose, with rapid results when injected.

Both diseases can cause mild infection in birds, and Eastern is highly lethal to horses.

Humans may be infected, but the disease must not be highly lethal or able to cause an epidemic.

It ripped at them with its long branches, which were in fact highly lethal spears.

Each component in itself is non-tumoricidal, but when combined together they produce highly lethal effect.

The disease is highly lethal and contagious, killing shrimp quickly.

Both are hardy and highly lethal, making them good weapons for inflicting mass casualties.