because of teething

All human herpes viruses have totally unique biological Cheap Generic Viagra properties - persistence, latency period and tissue tropism.

Persistence is the ability of herpes viruses to continuous Purchase Levitra Sale Online reproduction in their chosen (in other words, anisotropic) tissues. Due to this property of "successful" penetration into the organism poses a constant threat of infection. Thus clinical symptoms Brand Name Viagra Prescription are absent, however, as the manifestation virusindutsirovannyh damage cells in experimental systems.

Latency period of herpes viruses is a "lifelong preservation of Cheap Brand Name Cialis viruses in an implicit, morphological and immunochemical modified form in nerve cells of regional (relative to the place of introduction herpesvirus) ganglia of sensory nerves." In latent infection the cellular and Generic Levitra Pills viral genomes to coexist peacefully as long as under the influence of any intracellular or external factors not happen activation of herpes viruses.

All of these abilities in different Cialis Drugs Online Pharmacy viruses are expressed in different ways. They are manifested most clearly in herpes simplex virus, in particular, one of its Order Viagra Tablets Online varieties of HSV-1. Herpes simplex virus type-1 in the human body penetrates through the epithelium of the oral cavity, roto-and nasopharynx, and in 2 hours after infection the cells begin the synthesis of viral proteins. 8 hours the number of these proteins reaches the maximum value, even Tadalafil Sildenafil Vardenafil after 2 hours appear fully formed "daughter" virions, ready for further action. Moreover, for all his life "parent" virus particle is capable of reproducing from 10 to 100 "daughter" virions, and in one of herpetic vesicles containing a thousand to 10 million viruses.

Most vulnerable to HSV-1 infants aged 6 months to three years. This is explained by the fact that in the first six months of life from the herpes virus antibodies protect infants mother coming from Buy Generic Cialis Online breast milk. Upon termination of breastfeeding antibodies no longer work, and the local oral immunity in this age are underdeveloped. Moreover, because of teething often violated the integrity of the mucosa. Naturally, all this creates favorable conditions for infection. In addition, the introduction is important in the diet foods and imperfections glands, dyspepsia, which weakens the resistance of the organism of the child. However, herpes virus type-1 can infect man and later as a conservative estimate of 60-80% of older children and 30-50% of adults Order Brand Levitra Discount unable to protect themselves from it. Immunologists call such people seronegative, ie do not have anti-HSV-1 antibodies.