The insights into the future perspectives of viruses suggest potential viral pandemics with a significant threat to global health
Predicting specific future events, including viral pandemics, is challenging. It is true that the potential for viral pandemics remains a concern and the general insights into the future perspectives of…
Viruses in domestic animals pose a threat to human beings
Viruses in domestic animals can indeed pose a threat to human beings, although the extent of the threat varies depending on the specific virus and the circumstances. Here are a…
Lesson 3c: Cultivation of viruses in Tissue and Cell culture
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…
Lesson 3d: Similarities and differences of in vitro and in vivo methods for cultivation of viruses
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…
Lesson 4: Laboratory Methods for the diagnosis of viral diseases
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…
Lesson 4a: Visualization of virus particles by using Microscopic techniques
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…
Lesson 4b: Detection of viral antigens
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.…
Lesson 4c: Detection of viral antibodies
The detection of newly developed, virus-specific antibody or the detection of a rise in titer of preexisting antibody is essential in viral analysis and is without doubt one of the…
Lesson 4d: Detection of replicating viruses
Some viruses similar to widespread respiratory viruses (the influenza and parainfluenza viruses) and several other different viruses, mumps virus and Newcastle illness virus replicate in cell cultures however often don’t…