Erythrovirus, Papillomavirus, Polyomavirus, Adenovirus.

• Genus Erythrovirus is part of the Parvovirus and includes Parvovirus B19 or Erythrovirus, Bocavirus, and Dependovirus.
• Antigenic search involves immunofluorescence, immunoenzymatic, and complement fixation tests.
• Parvovirus B19, also known as Erythrovirus, is active against nucleated cells of erythroid series, proliferating cells.
• Parvovirus B19 attaches to glycoside P and penetrates only in cells depending to S phase of replicative cycle.
• Replication of Parvovirus B19 causes the block of erythropoiesis and if not normal immunity to compensate it, then chronic hemolytic anemia and transitory aplastic crisis (drop in Hb and reticulo- cells) can occur.
• Parvovirus B19 is transmitted through aerosol and transplacental.
• Parvovirus B19 infections can lead to hemocytopenia and thrombocytopenia and can cause persistent infections which can lead to chronic anemia.
• Fetal idrope can occur if there is an intrauterine fetal infection with Parvovirus B19.
• Parvovirus B19 infections can also cause aplasia, generalized edema, and cardiac insufficiency.
• Diagnosis of Parvovirus B19 infections can be done through viral isolation in blood and through PCR.
• Serological tests such as antibodies IgM or serum conversion can also be used for diagnosis of Parvovirus B19 infections.
• Human Papillomavirus (HPV) and Polyomavirus both have circular DNA bicatenated.
• Human Papillomavirus (HPV) have 2 groups: Alfa with a tropism for mucosa and Beta with a tropism for cutis.
• Human Papillomavirus (HPV) don’t multiply in cultures.
• Human Papillomavirus (HPV) have a special tropism for epithelial of epidermis and mucosa where replication occurs.
• Human Papillomavirus (HPV) are infected through contact of virus and inoculation in basal layers.
• Human Papillomavirus (HPV) can cause STD for condyloma.
• Infants are more susceptible to adenovirus causing systemic infections.
• Diagnosis of adenovirus involves isolation in human cells and neutralization reactions for typifications.
• Adenovirus is a virus that is present in cells of adenoid tissue and undergoes spontaneous lysis.
• Adenovirus can cause persistent infections and latent infection leading to integration of genome.
• Deoxyribose viruses accumulate in the nucleus of cells and form inclusions.
• Condyloma have a soft consistency and can be found also in the respiratory level and conjunctiva/oral.
• Polyomavirus enters into the blood and if not controlled, can lead to severe conditions.
• JC virus causes progressive multifocal leukoencephalitis.
• Treatment for verruca common includes keratinolytic drugs, interferon, and surgical intervention.
• Diagnosis of verruca common involves cytomorphologic studies and viral genome search.
• Adenovirus can also infect the neuroaxis causing meningitis.
• Polyomavirus is an opportunistic virus that causes respiratory latent manifestations.
• BK virus causes interstitial nephritis, urethral stenosis, hemorrhagic cystitis.
• 47 human adenovirus is a type of adenovirus.
• Condyloma refers to genital warts found on the penis, female genitalia, urethra, perianal, rectum.
• KI virus, WU virus, TSpyV, and Polyomavirus are other types of viruses associated with diseases.
• Adenovirus infects different epithelia-mucosae including respiratory system, enteric, ocular, genito-urethral, lymphoid and submucosae.
• First infection with Polyomavirus is usually asymptomatic or results in mild symptoms.
• Verruca common, plantar and palmar verrucae, verruciformis epidermodysplasia are types of warts.
• Verruca common can cause degenerations leading to carcinomas.
• Pathogenesis of adenovirus involves cytocide infection and destruction of infected cells.
• Adenovirus does not cause reinfections.
• Cervix cancer and tonsillar carcinoma are diseases associated with verruca common.