viral diseases

viral diseases
Diseases caused by viruses.

Long-term immunity usually follows viral childhood diseases (see chickenpox). The common cold recurs into adulthood because many different viruses cause its symptoms, and immunity against one does not protect against others. Some viruses mutate fast enough to reinfect people after recovery (see influenza) or to keep the immune system from fighting them off (see AIDS). Certain cancers are caused by viruses. Vaccines can prevent some viral diseases. Most recently developed antiviral drugs work only against specific viruses; antibiotics are ineffective against viral diseases. See also poliomyelitis; smallpox.

* * *


Universalium. 2010.

Look at other dictionaries:

  • viral diseases — illnesses that are caused by viruses …   English contemporary dictionary

  • Viral hemorrhagic fever — Classification and external resources ICD 10 A96 A …   Wikipedia

  • Diseases of the honey bee — or abnormal hive conditions include: Contents 1 Pests and parasites 1.1 Varroa mites 1.1.1 Treatment 1.2 Acarine (Tracheal) mit …   Wikipedia

  • Viral evolution — is a subfield of evolutionary biology that is specifically concerned with the evolution of viruses. Many viruses, in particular RNA viruses, have short generation times and relatively high mutation rates (on the order of one point mutation or… …   Wikipedia

  • viral hemorrhagic fever — ▪ pathology       any of a variety of highly fatal viral diseases that are characterized by massive external or internal bleeding or bleeding into the skin. Other symptoms vary by the type of viral hemorrhagic fever but often include fever,… …   Universalium

  • diseases — (as used in expressions) bacterial diseases fungal diseases protozoal diseases viral diseases * * * …   Universalium

  • Viral hemorrhagic septicemia — (VHS) is a deadly infectious fish disease caused by the Viral hemorrhagic septicemia virus (VHSV, or VHSv). It afflicts over 50 species of freshwaterand marine fish in several parts of the northern hemisphere.… …   Wikipedia

  • Diseases of poverty — is a term sometimes used to collectively describe diseases and health conditions that are more prevalent among the poor than among wealthier people. In many cases poverty is considered the leading risk factor or determinant for such diseases, and …   Wikipedia

  • Viral vector — Viral vectors are a tool commonly used by molecular biologists to deliver genetic material into cells. This process can be performed inside a living organism ( in vivo ) or in cell culture ( in vitro ). Viruses have evolved specialized molecular… …   Wikipedia

  • Viral load — is a measure of the severity of a viral infection, and can be calculated by estimating the amount of virus in an involved body fluid. For example, it can be given in RNA copies per milliliter of blood plasma. Determination of viral load is part… …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”