Virology is the study of viruses, about the nucleic acid and protein that are responsible for their replication in plants, animals and humans. It reveal about the study of their distribution, biochemistry, about their histology, ecology and clinical aspects of virus. It is the scientific discipline concerned with the viruses, physiology, molecular biology and viral diseases along with their causal agents. Cells effected by viruses and the changes in its in  response  to the virus lead to the manifestations of viral disease.

Clinical aspects or analysis of bacterial diseases and Clinical bacteriology supports the diagnosis of diseases by different types of clinical methods.  There are different types of specimens that are used in cases report in clinical pathology. They are blood, urine, sputum, faeces, and other body fluids, which deals with the health care, especially the diagnosis and treatment of different types of disorders in our body.These specimen specially can be use in the diagnosis and treatment of disorder in female reproductive system.

 Virology is the study of viruses, about the nucleic acid and protein that are responsible for their replication in plants, animals and humans. It reveal about the study of their distribution, biochemistry, about their histology, ecology and clinical aspects of virus. It is the scientific discipline concerned with the viruses, physiology, molecular biology and viral diseases along with their causal agents. Cells effected by viruses and the changes in its in  response  to the virus lead to the manifestations of viral disease.

 Epidemiology is a field of medicine uses to studies the occurrence, causes and its effects on population. It has a key role in protecting public health and can provide valuable information for developing new medicines. It is used to plan and evaluate strategies to prevent illness as well as guide to the patients in whom disease has already developed.  Its  study include  causation of diseases, transmission of diseases, forensic epidemiology, Occupational epidemiology, screening and the treatment effects such as in clinical trials.        

Pathogenesis is the term used to describe the origin and development of a disease. It is determined by the balance between host and virus. The pathogenesis of infectious diseases describes the mechanisms of its development, progression, and either persists or is resolved. To understand the pathogenesis of an infectious disease at the cellular and molecular levels is difficult for discovering, developing, and implementing methods to prevent infection, and to improve patient outcomes after treatment.

Animal bacteriology is the health Diagnostic Center provides high quality, detailed, and completes diagnostic method of bacterial diseases in animals. Several major groups of bacteria are considered to be very significant in animal health and welfare. Some of these bacteria are very pathogenic and their level of pathogenicity cause different kinds and levels of infections to livestock, pets and wildlife.

It is the study about the bacterial diseases, their causal agents, morphology, and diagnostics method in human. The most common human bacterial diseases are Pneumonia, Cholera, Influenza, Tuberculosis, Measles, Typhoid, Malaria, Anthrax. Mostly recently discovered viruses are Rift Valley Virus, Oropouche, Mayaro. The Symptoms of Genus leptospirosis is  high fever,  headache, chills,  and vomiting, and may include jaundice, red eyes, abdominal pain, diarrhea. Some exotic diseases are zoonotic which can pass between animals and humans, such as rabies.

Plant bacteriology involves the scientific study of bacteria identification, disease etiology, disease cycles, economic impact, epidemiology of plant diseases, plant disease resistance, the way in which plant diseases affect humans and animals. Some bacteria causes a small proportion of plant diseases, this does not mean that these diseases are unimportant. Pathogenic tests can be done for the prevention of disease.  Both natural and cultivated plants carry genetics disease resistance, but there are numerous examples of devastating plant disease.

It is the comprehensive services by providing excellent diagnostic tests as well as to provide consultative services in the area of veterinary virology. Especially it is method of   detection of viral infections in most of domesticated species by offering tests that isolate viruses by detecting viral antigens. This detects antibodies that are made in response to infections. The rise of the severe acute respiratory syndrome (SARS) in the human population which is coming from an animal source highlights the importance of animals in harboring infectious agents. The research on animal viral diseases  has made a contribution to understand the viral morphology, their replication, molecular biology and interaction with the host to know its epidemiology.

Plant Virology is a field of Plant Pathology and Environmental sciences. Plant virology deals with Viruses & the diseases cause by Virus like Pathogens.  Tobacco mosaic infection (TMV) is a single stranded RNA virus that defects an extensive variety of plants, particularly the tobacco and different individuals of the family Solanaceae. . Plant viral vectors are viewed as a option for recombinant protein production. In this agricultural virology the morphology of virus, its physiology, its host- pathogen interaction can be study. Plant diseases that are cause by virus called as plant virology.

 Human Virology deals with study of viruses that affect human. It provides a clinically-relevant opportunity for distributing information on human viruses. The researches    discussions on basic science, pathogenicity, prevention, and epidemiology;  on the latest advances, trends, and technology; and quick publication of late-breaking information. Human Virology covers the recent breakthrough discoveries in the field of Human. Ebola Virus disease, HIV virus , Avian influenza  , Measles and  SARS, hepatitis virus   cause serious diseases in human. The relative ability of viruses to cause disease is terms as virulence

Pediatric virology is deals with the viral diseases during early childhood stage or in embryo stage.  It is not an isolated discipline but the syndromes associated with viral infection are modified by the unique characteristics of infancy and childhood.  The most common viral fever in childhood stage is the seasonal flu or influenza. But children can catch milder viral. Mostly the childhood viral infections are not serious and include varieties of illnesses as colds with a sore throat, vomiting and diarrhea, and fever with a rash. But there are some viral illnesses that cause more serious disease, such as measles. The VZV causes a disease named chickenpox which most commonly affecting children. Polio is highly infectious diseases that primarily affects children under five years of age. The most common Pediatric cancers are  leukemia , brain tumors and lymphomas .

Medical Virology or clinical virology deals with isolating several viruses responsible for diseases and can be detected by   various direct or indirect techniques. Diagnostic tests can be grouped into 3 categories the first one is the direct detection, second one is the indirect examination and the last one is the serology. It mainly deals with cell cultures, serological, biochemical and molecular studies of virus. This field is very useful in detecting the epidemiology and spreading of plants, human and animal viral diseases. Serology refers to the identification of antibodies in the serum. Such antibodies are formed in response to an infection against foreign proteins. By following the serological assay the diagnosis of leptospirosis in Martinique can be possible.

Molecular biology is most advance form of research field to detect the infection by going through the molecular composition of virus. Molecular therapy   includes various types of  techniques such as  DNA cloning, proliferation of DNA, bacterial transformation , transfection, chromosome integration, cellular screening, cellular culture, extraction of DNA, DNA polymerase DNA dependent, reading and writing DNA, DNA sequencing, DNA synthesis, hybridization. Most important techniques are polymerase chain reaction(PCR), Southern blotting, Northern blotting. Viral therapy for cancer, also called oncolytic viral therapy. Oncolytic viral therapy can be use for the treatment of pancreatic cancer or pancreas cancer.