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Are you immune to dengue fever if you have had it once?
The short answer is: Yes, and often the 2nd time around the dengue will be more severe. The long answer is: There are 4 general types of dengue fever - these are called serotypes. Once 1 serotype of dengue has been contracted, limited immunity to this serotype is generated. However, if a person who has contracted dengue once, gets re-infected with a different serotype, this will often increase the severity of the disease and increase the chances of developing the much much more severe dengue hemorrhagic fever. Also, dengue is notorious for being generally more severe in children.
Which diseases give life long immunity after and attack?
rubella,mumps,pertusis.DHF(Dengue haemorragic fever)
Are vaccinations the only way will acquire immunity?
No actually having had the illnes can in some case give you immunity if it doesn't kill you
Why new born are vaccinated?
To acquire immunity against fatal diseases.
How does an animal acquire an active immunity to disease?
Active immunity to a disease is acquired either through getting the disease or being vaccinated for it.
A positive tuberculin skin test shows cellular immunity to Mycobacterium tuberculosis How could a person acquire this immunity?
having the actual disease
Over time where the Indians able to acquire enough immunity to survive European diseases?
yes
Do you need to fast before a dengue test?
no
Could a person possibly experience dengue again and again?
Yes.It can usually occur three times and each episode is more dangerous progressively with the third episode is more likely to be catastrophic.There is no permanent immunity against dengue. Save
Why aren't vaccines done annually?
The purpose of a vaccine is to build the body's immunity to the specific disease. It is expected that you will acquire immunity after a certain number of shots. As long as you maintain your immunity for that specific virus, you will not need another shot. I have to get a measles shot every year, because for some reason I do not retain my immunity.
What are two types of acquired specific immunity?
There is innate immunity (that you are born with) and acquired immunity. Acquired immunity you get when you are vaccinated or you get the disease and fight it off. The best example is that of what we call common colds. There are about 100 different viruses that cause them. This is one reason that babies and young children seem to be always be coming down with one or getting over one.
Which is your body and rsquos ability to destroy pathogens that it has previously encountered before these pathogens can cause disease?
Immunity.
