A. VIDEOS Laboratory Diagnosis of Viral Diseases -1 Laboratory Diagnosis of Viral Infections -2 Laboratory diagnosis of viral infections -3 Laboratory Diagnosis of viral Diseases -4 Laboratory Diagnosis of Viral…
Topic 13: Laboratory diagnosis of viral infections Sample collection for diagnosis of viral diseases Specimen shipping/transport and storage For the most accurate diagnosis, it’s important to think beyond specimen collection…
Animal inoculation was the first method of virus cultivation and for many years was the only means of virus propagation. To confirm the infectious nature of the disease it may…
The embryonated egg is a complex structure comprised of an embryo and its supporting membranes (chorioallantoic, amniotic, yolk). The developing embryo and its membranes provide the diversity of cell types…
The idea of cell cultures dates back to the end of the nineteenth century. It was not a practical laboratory technique until the development of antibiotics. Cell cultures have replaced…
Viruses need host cells to replicate, and the cultivation of viruses involves providing them with suitable conditions so they can infect these host cells and reproduce. This can be done…
There are a number of clinical situations where viral diagnosis may be particularly helpful. These include: Viral diseases in which there are important public health considerations (e.g., influenza and arbovirus…
Viral diagnosis by direct or indirect visualization can be achieved by using light or electron microscopy and relies on the identification of viruses based on typical morphological characteristics. Noncultivable viruses…
The presence of viral antigens in clinical specimens, such as nasopharyngeal aspirates, fecal specimens, vesicle fluids, tissue specimens, as well as serum samples can be demonstrated by antigen detection assays.…