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vaccine is not effective against protozoal diseases because of complex lifecycle of protozoa and multiple strains.
As of 1998, there is no vaccine that is effective against parrot fever.
One dose of chickenpox vaccine is 80-85% effective. A second dose is now recommended to increase immunity.
Jonas Salk's initial testing of polio vaccine is 60 - 70% effective against PV1 (poliovirus type 1, over 90% effective against PV2 and PV3, and 94% effective against the development of bulbar polio.
Jonas Salk's initial testing of polio vaccine is 60 - 70% effective against PV1 (poliovirus type 1, over 90% effective against PV2 and PV3, and 94% effective against the development of bulbar polio.
No. These viruses mutate rapidly and you can not get one vaccine for all of the subtypes.
Probally Vaccine Or Antibiotics.
Tests can be performed to determine what type of antibiotic would be most effective against that particular bacteria.
There is no vaccine effective against colds, and infection does not prevent one from getting colds.
Answer this question… They have to predict which strains of flu will become active months before the flu season begins.
Part of the problem in developing an effective vaccine so far has been the issue of mutation. The HIV virus mutates, or changes, rapidly. What this means for vaccine research and development is that as we are studying the virus and figuring out what will be effective against it, it changes, making whatever we have so far come up with ineffective.
To corrupt a vaccine in Pandemic 2, you can use Genetic Hardening. This ability allows you to make the virus more resistant to any vaccine that is developed, thus hindering efforts to combat it effectively. Keep in mind that the vaccine can still be developed, but it will be less effective against your virus.