Variant Creutzfeldt-Jakob disease (vCJD) is a relatively new and rare neurological disease, classified as a Transmissible Spongiform Encephalopathy (TSE).
Diphtheria is spread through droplets from coughing or sneezing. Most often the disease causes a sore throat and low grade fever in the first few days of the illness.
Hepatitis A is an acute infectious disease of the liver caused by the hepatitis A virus, a small, non-enveloped hepatotropic virus classified in the genus Hepatovirus within the family Picornaviridae.
Brucellosis is an infection caused by Brucella bacteria. The common reservoirs for Brucella bacteria that may infect humans are cattle, dogs, sheep, goats, and pigs.
Plague is caused by the bacillus Yersinia (Y.) pestis, belonging to the family of the Enterobacteriaceae. It evolved several thousand years ago from Y. pseudotuberculosis.
Plague is caused by Yersinia pestis bacteria. Blood sucking fleas transmit the bacteria among animals, and various species of rodents can become infected.