(permission obtained by e-mail)
Description: It is transmitted by animals such as the deer mice (right picture) and the cotton rat (left picture).
Description: Human influenza virus particles.
Description: Hepatitis B virus
Description: Hepatitis E virus (HEV) is a spherical, nonenveloped, single stranded RNA virus that is approximately 32 to 34 nm in diameter.
Description: Hepatitis A Virus