Why is it not necessary to give Hepatitis A vaccine to children in some cases?

Protects your child from hepatitis A, a potentially serious disease. Protects other people from the disease because children under 6 years old with hepatitis A usually don't have symptoms, but they often pass the disease to others without anyone knowing they were infected.

Explanation:

1. loamy sand is about 80% sand with 10% clay and defined mostly by sand particles with some clay to provide structure and fertility. the sand particles are easily visible and the soil holds structure but breaks apart easily.

2. scott sand can improve his soil quality by incorporating more silt and organic matter into the soil. peat moss and organic matter can also be incorporated.

one part of the electromagnetic spectrum that arrives on earth as solar radiation from the sun is the visible spectrum. wavelengths of the visible spectrum combine to form what we refer to as

answer - d) ultraviolet radiation.

violet /   380–450 nm / 668–789 thz

violet is number 1 in the chart of visible light.