DNA viruses Flashcards
Are Adenoviruses enveloped or non-enveloped?
Non-enveloped
Are Adenoviruses single or double stranded DNA?
Double stranded
What is the symmetry of the Adenovirus?
Capsid is icosahedral w/ 12 penton fibers that bind to r/c sites on host cell
Where do Adenoviruses primarily attack?
Mucoepithelial cells of the conjunctiva, respiratory tract, GI and genitourinary tracts
What are example of Adenoviruses?
Acute respiratory infection (common cold)
Pharyngitis
Gastroenteritis
Epidemic Keratoconjunctivitis
What are the Papovaviridae viruses?
Human Papilloma Virus
Polyomaviruses
Describe HPV characteristics
Naked (non-enveloped)
Double Stranded
Icosahedron capsid symmetry
What does HPV cause and where?
Causes warts: common warts, plantar warts, laryngeal papillomas (benign epithelial growths similar to warts on skin), and genital warts
How commonly spread is genital warts?
One of the most common STIs in the world
About how many types of HPV are spread through sexual contact?
30
What does the papilloma virus cause in humans? in animals?
Humans = neoplasms Animals = natural cancers
True or False: Many people infected w/ HPV have no symptoms?
True
What is HPV associated with? (it is likely their cause?
Human penile
Uterine Carcinoma
Cervical carcinoma
What is the structure and symmetry of Polyomaviruses?
Naked (non-enveloped)
Double stranded
Icosahedral symmetry
How big are Parvoviruses?
Smallest naked icosahedral DNA viruses
How resistant are Parvoviruses?
Among the most resistant known viruses