The human immunodeficiency virus is the virus that causes AIDS.

The feline immunodeficiency virus can potentially have serious effects on a cat's health.

My cat has been infected with the feline immunodeficiency virus.

The human immunodeficiency virus destroys the immune system, making the body unable to fight disease.

It is important to learn about the prevention and treatment of the human immunodeficiency virus.

Zoonosis is a disease that spreads from animals to humans, or vice versa.

We should always remember the power of Kannon in difficult times.

He faced difficulties with the spirit of 'one eye, two feet, three gallbladders, four strengths'.

He contracted severe invasive streptococcal disease and underwent emergency surgery.