Obtained by steam distillation of the lavender flowers, lavender essential oil is effective in repelling dust mites, fleas, mosquitoes, ticks, bedbugs and spiders. Lavender does not kill insects. The aromatic scent of lavender is offensive, causing insects to flee the area.
The body's defense system. Most viruses do not cause serious diseases and are killed by the body's immune systemâits network of natural defenses. In many cases, people never even know they have been infected. But unlike bacteria, which can be killed by antibiotics, most viruses are not affected by existing medicines. Fortunately, scientists have been able to make vaccines, which help the body develop natural defenses to prevent many viral infections.
Do you need viral hepatitis vaccines? Hepatitis A and B: Diseases of the Liver. Hepatitis is an inflammation of the liver, most often caused by a viral infection. There are three common types of hepatitis caused by viruses: hepatitis A, hepatitis B, and hepatitis C. Vaccines have been developed that protect people from contracting hepatitis A and B. There is no vaccine for hepatitis C.