Just because your cat has been vaccinated does not mean you can sit back and relax

Being vaccinated does not mean you can sit back and relax. In medicine, it is called a preventable infectious disease that has been vaccinated but has no protective effect. Immunity failure. Generally speaking, immune failure is rare, but it does not happen. It can be caused by problems with the vaccine itself, human factors, or the biological organism itself. Below we will introduce the situations that cause cat vaccination. Immunization failure, introduction to cat raising!

1. Different strains of viruses or bacteria

If the virus or bacterial strain mutates, the vaccination will also fail. . Virus mutation is also a problem that needs to be paid attention to in vaccine preparation. For example, recently, a mutant strain of parvovirus was discovered clinically, and as a result, conventional parvovirus vaccination failed. The reasons for virus mutation are very complex. It may be caused by the virus's own genes, or it may be caused by stimulation from the external environment, such as some chemical or physical factors, which cause viral gene mutations. At the same time, the abuse of some drugs, such as antibiotics, can also cause viral resistance. Changes that reduce the immune effect.

2. The issue of maternal antibodies

Antibodies obtained from the mother through the placenta and colostrum are called maternal antibodies. Due to the presence of maternal antibodies, young kittens have strong resistance to certain diseases. When should vaccinations begin? This is related to the level of maternal antibodies. The time that maternal antibodies circulate in the body is different in different individuals and different antibodies. Each individual has a susceptible period, varying in length from days to weeks, during which maternal antibody levels are too high to prevent vaccines from being effective but too low to provide sufficient protection against infectious disease. Even if you are vaccinated during this period, you can still get infectious diseases. The susceptibility periods are also different between different litters and even between different individuals in the same litter. Therefore, young cats should consider the interference of maternal antibodies and should be vaccinated according to the vaccine instructions. Generally, when a cat is twelve weeks old, the maternal antibodies in the body have dropped to non-interfering levels. The last vaccination against most infectious diseases should be at twelve weeks of age or later to make the cat protective.

3. Equipment used for immunization

Subcutaneous injection

During vaccination, attention should also be paid to the equipment used for immunization, needles, The syringe must be sterilized first. Unsterilized syringes, needles and droppers will reduce the performance of the vaccine. When diluting the vaccine, unsterilized or contaminated diluent will cause the vaccine to be impure. At the same time, distilled water should be used during preparation. Diluting the vaccine with chlorine tap water will reduce the immune activity of the vaccine and cause immune failure. These factors can be avoided, as long as we keep an open mind.

4. Improper use of vaccines

The route of vaccination is not carried out according to the requirements of the vaccine. For example, some drugs are injected subcutaneously and some are injected intramuscularly. Or intranasal drip, etc., and the injection must be done according to the dose.

Finally, I believe everyone has heard of the word protection rate. We often hear news talking about the protection rate of influenza A vaccine. This means that the vaccine’s protection against infectious diseases is not 100%, but there is a certain level. protection rate. So even if your cat’s immune program is perfect, it doesn’t mean it’s 100% fine. You still need to pay attention to the prevention of some diseases.