Viral infections

Antiviral agents are most active when viruses are replicating. The earlier that treatment is given, therefore, the better the result. An important difficulty is that a substantial amount of viral multiplication has often taken place before symptoms occur. Apart from primary infection, viral illness is often the consequence of reactivation of latent virus in the body. In both cases patients whose immune systems are compromised may suffer particularly severe illness. Viruses are capable of developing resistance to antimicrobial drugs, with similar implications for the individual patient, for the community and for drug development. An overview of drugs that have proved effective against virus diseases appears in Table 14.1.

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Blood Pressure Health

Blood Pressure Health

Your heart pumps blood throughout your body using a network of tubing called arteries and capillaries which return the blood back to your heart via your veins. Blood pressure is the force of the blood pushing against the walls of your arteries as your heart beats.Learn more...

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