Havrix is a hepatitis A vaccine. Hepatitis is a serious disease caused by a virus. Hepatitis causes inflammation of the liver, vomiting, and jaundice (yellowing of the skin or eyes). Hepatitis can lead to liver cancer, cirrhosis, or death.
The oldest plant ever to be regenerated has been grown from 32,000-year-old seedsâbeating the previous recordholder by some 30,000 years. (Related: 'Methuselah' Tree Grew From 2,000-Year-Old Seed.) 1  Imagining the Banana of the Future.  The Curious Case of the Bumblebee, the Virus and the Tomato.
If stored in a cool, dry place, grass seed can last for 2-3 years. However, the germination rate (the number of seeds that will grow) will decrease over time, so you may not get the same results you would if you were using fresh seed.For best results, use fresh product and try to plant it within a year.hat kind of seed to use, how to plant it, and even weather conditions can all add up to one big question mark for many people. That's why we had our experts answer some of the most commonly asked questions about planting grass seed.