Free Download Parvoviruses Full Pdf
By Veterinary Knowledge Facebook Page
Size 12.5 MB
Pages (Only 651 Pages )
Language ( English )
Book ( About Parvoviruses )
👉 Parvoviruses belong to a family of diminutive, non-enveloped, single-stranded DNA viruses with a broad host spectrum, encompassing mammals (such as canines, felines, and humans) and birds. They derive their name from their minute size, being among the smallest viruses known to infect animals.
Here's an outline of key characteristics about parvoviruses:
1. Structure: Parvoviruses exhibit a simple structure comprising a protein capsid that envelops their DNA genome. This capsid manifests icosahedral symmetry and boasts exceptional stability, enabling the virus to endure harsh environmental conditions.
2. Genome: Parvoviruses possess a single-stranded DNA genome, relatively petite compared to other virus types. The genome typically encodes a handful of proteins essential for virus replication and infection.
3. Host Range: Different parvoviruses exhibit distinct host preferences. For instance, canine parvovirus chiefly targets dogs, feline panleukopenia virus affects cats, and human parvovirus B19 infects humans.
4. Disease: Parvoviruses elicit various diseases contingent on the host species. In dogs, canine parvovirus instigates highly contagious gastrointestinal maladies, particularly severe in puppies. Feline panleukopenia virus induces similar ailments in cats. Human parvovirus B19 may lead to diverse symptoms including erythema infectiosum (fifth disease) in children, arthropathy, and occasionally severe anemia, notably in individuals with underlying health conditions.
5. Transmission: Parvoviruses commonly spread through contact with infected individuals or their bodily fluids, including saliva, feces, or respiratory secretions. Canine parvovirus, for instance, can persist in the environment for extended periods, rendering it highly contagious and resilient to disinfection.
6. Prevention and Treatment: Preventing parvovirus infection often entails vaccination, particularly in pets. Vaccines are available for dogs and cats, mitigating the risk of infection and reducing disease severity. Treatment typically involves supportive care such as fluid therapy, anti-nausea medications, and antibiotics to stave off secondary infections.
Overall, parvoviruses represent significant pathogens in both veterinary and human medicine, precipitating a spectrum of diseases with potentially grave consequences, particularly among vulnerable populations.
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