1 Babies under 6 months of age. 2  Although the vaccine is not harmful to babies less than 6 months old, it does not work. 3  If your child has a serious allergy to thimerosal (a preservative in contact lens solutions and the flu vaccine), a thimerosal-free vaccine should be given.f you have children younger than 5 years old or who have health complications, everyone living in the house should get a flu shot. This is especially important if you have children under 6 months old or a member of your household who is pregnant. Pregnant women should be immunized.
The Cambrian Period is the first geological time period of the Paleozoic Era (the âtime of ancient lifeâ). This period lasted about 53 million years and marked a dramatic burst of evolutionary changes in life on Earth, known as the Cambrian Explosion..
The Cambrian Period ( /ËkÃ¦mbriÉn/ or /ËkeÉªmbriÉn/) was the first geological period of the Paleozoic Era, of the Phanerozoic Eon.[6] The Cambrian lasted 55.6 million years from the end of the preceding Ediacaran Period 541 million years ago (mya) to the beginning of the Ordovician Period 485.4 mya.[7] Its subdivisions, and its base, are somewhat in ...