Because certain viruses and bacteria evolve to become resistant to the old vaccines.
Because some vaccination are unimportant.
because the influenza bug changes every year. It's never exactly the same as the previous year.
Yes, in fact many different vaccines exist for many different diseases (in the case of flu a new vaccine has to be made every year because the virus evolves so rapidly that the previous year's vaccine would not work against it).
i will say about 50,000 children die each year from vaccines
The struts need to be changed every other year.
Every year.
In the year 1796.
food shelter clothing
Vaccines changed society because with out vaccines then there would be so many deaths. Vaccines help to prevent the disease before you get it. Why pay a visit to the doctor when you can just go get the vaccine and not have to get the disease.
To keep your dog's vaccines updated and protected from disease, take your dog for it's injection once a year.
The first two consuls during the first Punic war were Lucius Megellus and Quintus Vitulus. They were the first two. Remember that the consuls changed every year, so unless there was a dictator appointed the consuls changed annually and there were generally two new consuls for every year of the war.The first two consuls during the first Punic war were Lucius Megellus and Quintus Vitulus. They were the first two. Remember that the consuls changed every year, so unless there was a dictator appointed the consuls changed annually and there were generally two new consuls for every year of the war.The first two consuls during the first Punic war were Lucius Megellus and Quintus Vitulus. They were the first two. Remember that the consuls changed every year, so unless there was a dictator appointed the consuls changed annually and there were generally two new consuls for every year of the war.The first two consuls during the first Punic war were Lucius Megellus and Quintus Vitulus. They were the first two. Remember that the consuls changed every year, so unless there was a dictator appointed the consuls changed annually and there were generally two new consuls for every year of the war.The first two consuls during the first Punic war were Lucius Megellus and Quintus Vitulus. They were the first two. Remember that the consuls changed every year, so unless there was a dictator appointed the consuls changed annually and there were generally two new consuls for every year of the war.The first two consuls during the first Punic war were Lucius Megellus and Quintus Vitulus. They were the first two. Remember that the consuls changed every year, so unless there was a dictator appointed the consuls changed annually and there were generally two new consuls for every year of the war.The first two consuls during the first Punic war were Lucius Megellus and Quintus Vitulus. They were the first two. Remember that the consuls changed every year, so unless there was a dictator appointed the consuls changed annually and there were generally two new consuls for every year of the war.The first two consuls during the first Punic war were Lucius Megellus and Quintus Vitulus. They were the first two. Remember that the consuls changed every year, so unless there was a dictator appointed the consuls changed annually and there were generally two new consuls for every year of the war.The first two consuls during the first Punic war were Lucius Megellus and Quintus Vitulus. They were the first two. Remember that the consuls changed every year, so unless there was a dictator appointed the consuls changed annually and there were generally two new consuls for every year of the war.
1992 was the last year of both olympic games in the same calender year. The winter Olympics were changed to 1994 and then every four years again in rotation. You now have an olympic games every 2 years.