What are some viral diseases that do not have a vaccine?

Question

Can you please give more information on vaccines?

Answer 1

Lets take the flu for example. The yearly flu usually initiates in the East, the result of pieces of viruses from fowl, swine and humans combining to form a new virus that the body has never encountered before. The CDC does its best to predict what form of flu will show up in the upcoming winter and starts producing the vaccine for it early in the year. The trouble with viruses is that they mutate (exchange genetic material) so quickly that the vaccine may not be 100% effective by the following winter.

So many new viruses originate in the East because in the rural areas there is so much close contact between domestic and wild fowl with human beings. This is why the CDC and other agencies are so concerned about a pandemic happening in regard to the bird flu which is similar in lethality to the Spanish flu of 1918. Since then, worldwide travel is much easier, making global transmission of the bird flu very likely.

Answer 2

Lots of viral illnesses don't have a vaccine. As mentioned above, the worst are Hepatitis C and HIV, but also west nile, bird flu, cytomegalovirus, norwalk agent, rotavirus, certain strains of herpes, parvovirus, JC virus, adenovirus, orthomyxovirus etc etc etc.

Answer 3

HIV does not have a vaccine.
Vaccines are dead or not active virusses of a spesific disease, say Measels. So you get injected with a minute amount of these unactive virusses and your body builds up immunity against it. So when you get exposed to these live virusses in the future your body's immune system recognise it and can fight it

Answer 4

HIV, Hepatitis C, and the common cold come to mind offhand.

Answer 5

Bird flu
HIV
Herpes (several types)

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