Please answer the following question: Information:  - Deoxyribonucleic acid (DNA) is a molecule that carries the genetic instructions used in the growth, development, functioning and reproduction of all known living organisms and many viruses. DNA and RNA are nucleic acids; alongside proteins, lipids and complex carbohydrates (polysaccharides), they are one of the four major types of macromolecules that are essential for all known forms of life. Most DNA molecules consist of two biopolymer strands coiled around each other to form a double helix.  - Castleman disease, also known as giant lymph node hyperplasia, lymphoid hamartoma, or angiofollicular lymph node hyperplasia, is a group of uncommon lymphoproliferative disorders that share common lymph node histological features that may be localized to a single lymph node (unicentric) or occur systemically (multicentric). It is named after Benjamin Castleman.  - Rhadinovirus (also known as "Rhadinoviridae" and gamma-2 herpesviruses) is a genus of viruses in the order Herpesvirales, in the family Herpesviridae, in the subfamily Gammaherpesvirinae. Human and mammals serve as natural hosts. There are currently nine species in this genus including the type species Saimiriine herpesvirus 2. Diseases associated with this genus include: Kaposi's sarcoma, primary effusion lymphoma and multicentric Castleman's disease, caused by Human herpesvirus 8 (HHV-8), also known as Kaposi's sarcoma-associated herpesvirus (KSHV). The term rhadino comes from the Latin fragile, referring to the tendency of the viral genome to break apart when it is isolated.  - Neonatal conjunctivitis, also known as ophthalmia neonatorum, is a form of conjunctivitis and a type of neonatal infection contracted by newborns during delivery. The baby's eyes are contaminated during passage through the birth canal from a mother infected with either "Neisseria gonorrhoeae" or "Chlamydia trachomatis". Antibiotic ointment is typically applied to the newborn's eyes within 1 hour of birth as prevention against gonococcal ophthalmia. Most hospitals in the United States are required by state law to apply eye drops or ointment soon after birth to prevent the disease. If left untreated it can cause blindness.  - The Archaea (or or ) constitute a domain and kingdom of single-celled microorganisms. These microbes (archaea; singular archaeon) are prokaryotes, meaning that they have no cell nucleus or any other membrane-bound organelles in their cells.  - Herpesviridae is a large family of DNA viruses that cause diseases in animals, including humans. The members of this family are also known as herpesviruses. The family name is derived from the Greek word "herpein" ("to creep"), referring to the latent, recurring infections typical of this group of viruses. "Herpesviridae" can cause latent or lytic infections.  - A DNA virus is a virus that has DNA as its genetic material and replicates using a DNA-dependent DNA polymerase. The nucleic acid is usually double-stranded DNA (dsDNA) but may also be single-stranded DNA (ssDNA). DNA viruses belong to either "Group I" or "Group II" of the Baltimore classification system for viruses. Single-stranded DNA is usually expanded to double-stranded in infected cells. Although "Group VII" viruses such as hepatitis B contain a DNA genome, they are not considered DNA viruses according to the Baltimore classification, but rather reverse transcribing viruses because they replicate through an RNA intermediate. Notable diseases like smallpox, herpes, and chickenpox are caused by such DNA viruses.  - Animals are multicellular, eukaryotic organisms of the kingdom Animalia (also called Metazoa). The animal kingdom emerged as a basal clade within Apoikozoa as a sister of the choanoflagellates. Sponges are the most basal clade of animals. Animals are motile, meaning they can move spontaneously and independently at some point in their lives. Their body plan eventually becomes fixed as they develop, although some undergo a process of metamorphosis later in their lives. All animals are heterotrophs: they must ingest other organisms or their products for sustenance.  - Gammaherpesvirinae is a subfamily of viruses in the order Herpesvirales, in the family Herpesviridae. Viruses in "Gammaherpesvirinae" are distinguished by reproducing at a more variable rate than other subfamilies of Herpesviridae. Mammals serve as natural hosts. There are currently 32 species in this subfamily, divided among 4 genera. Diseases associated with this subfamily include: HHV-4: infectious mononucleosis. HHV-8: kaposi's sarcoma.  - Conjunctivitis, also known as pink eye, is inflammation of the outermost layer of the white part of the eye and the inner surface of the eyelid. It makes the eye appear pink or reddish. There may also be pain, burning, scratchiness, or itchiness. The affected eye may have increased tears or be "stuck shut" in the morning. Swelling of the white part of the eye may also occur. Itching of the eye is more common in cases due to allergies. Conjunctivitis can affect one or both eyes. The most common infectious causes are viral followed by bacterial. The viral infection may occur along with other symptoms of a common cold. Viral and bacterial cases are easily spread between people. Allergies to pollen or animal hair is also a common cause. Diagnosis is often based on signs and symptoms. Occasionally a sample of the discharge is sent for culture. Prevention is partly by handwashing. Treatment depends on the underlying cause. In the majority of viral cases, there is no specific treatment. Most cases due to a bacterial infection will also resolve without treatment; however, antibiotics can shorten the illness. Those who wear contact lens and those with either gonorrhea or chlamydia as the cause should be treated. Allergic cases can be treated with antihistamine or mast cell inhibitor drops. About 3 to 6 million people get conjunctivitis each year in the United States. In adults viral causes are more common, while in children bacterial causes are more common. Typically people get better in one or two weeks. If there is visual loss, significant pain, sensitivity to light, signs of herpes, or a person is not improving after a week, further diagnosis and treatment may be required. Conjunctivitis in a newborn, known as neonatal conjunctivitis, may also require specific treatment.  - The Herpesvirales is an order of viruses all sharing the same overall morphology.  - Plants are mainly multicellular, predominantly photosynthetic eukaryotes of the kingdom Plantae.  - Equine herpesvirus 2 ( EHV - 2 ) is a virus of the family Herpesviridae , originally known as equine cytomegalovirus due to its slow replication in tissue culture . However , complete sequencing of the EHV - 2 genome has demonstrated that it is a member of the subfamily Gammaherpesvirinae , in the genus Rhadinovirus . . It has an uncertain role in respiratory disease in horses , but EHV - 2 has been isolated from cases exhibiting symptoms such as coughing , conjunctivitis , and swollen submaxillary and parotid lymph nodes .  - A virus is a small infectious agent that replicates only inside the living cells of other organisms. Viruses can infect all types of life forms, from animals and plants to microorganisms, including bacteria and archaea.  - Bacteria (common noun bacteria, singular bacterium) constitute a large domain of prokaryotic microorganisms. Typically a few micrometres in length, bacteria have a number of shapes, ranging from spheres to rods and spirals. Bacteria were among the first life forms to appear on Earth, and are present in most of its habitats. Bacteria inhabit soil, water, acidic hot springs, radioactive waste, and the deep portions of Earth's crust. Bacteria also live in symbiotic and parasitic relationships with plants and animals.    Given the information above, choose from the list below the object entity that exhibits the relation 'taxon rank' with the subject 'equine herpesvirus 2'.  Choices: - domain  - family  - form  - genus  - group  - kingdom  - order  - species  - subfamily
A:
species