While some years back, dogs suffering from disk disease (a condition where herniated disks in the neck or back put pressure on nerves) were given only two options, expensive surgery or euthanasia, nowadays conservative therapy is often advised, giving the dogâs damaged nerves the opportunity to heal.
Infectious diseases. WHO/Chris Black. Infectious diseases are caused by pathogenic microorganisms, such as bacteria, viruses, parasites or fungi; the diseases can be spread, directly or indirectly, from one person to another.Zoonotic diseases are infectious diseases of animals that can cause disease when transmitted to humans.nfectious diseases. WHO/Chris Black. Infectious diseases are caused by pathogenic microorganisms, such as bacteria, viruses, parasites or fungi; the diseases can be spread, directly or indirectly, from one person to another.
Non-infectious diseases (also called Non-communicable diseases) are those diseases that are not caused by a pathogen and cannot be shared from one person to another. Non-infectious diseases may be caused by either the environment, nutritional deficiencies, lifestyle choices, or genetic inheritances.enetic disorders are caused by errors in genetic information that produce diseases in the affected people. These errors may include: A change in the chromosome numbers, such as Down syndrome A defect in a single gene caused by mutation, such as Cystic Fibrosis. Environmental disease is a very broad category.