Young dogs should be vaccinated about 1 week after successful weaning and regularly thereafter. When puppies are first vaccinated, they are given a second vaccination at around 1 month and a third one immediately after. Do you know why dog vaccinations need to be given three times? Is there a reason for this?

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After the injection of the vaccine have a general rule, the body receives the stimulation of antigenic substances ---- vaccine, after a certain period of time in order to produce antibodies, it takes about 2-3 weeks of It takes about 2-3 weeks. But this time the number of antibodies produced is very small, the maintenance time is also short, this antibody to infectious diseases is not effective, can not play a role in epidemic prevention, so only one vaccine is not.

And, the reason why we need to inject the vaccine three times is that we need to stimulate the memory lymphocytes again and again, which is determined by the biological immunology, the first immunization can only produce a small amount of antibody level, and the duration is short, and in the reasonable interval of time to stimulate several times in order to produce a larger number of antibodies and long-term maintenance effect.

So the second inoculation is carried out, at which time the body can rapidly produce a large number of antibodies, which are dozens of times greater than the initial response, and remain in the body for a longer period of time. If the third inoculation is performed 3-4 weeks after the second inoculation, the number of antibodies produced by the body will increase by tens of times on the basis of the second. Thus, the dog body has the ability to resist infectious diseases, and then retained in the body long enough to be up to a year.