id author title date pages extension mime words sentences flesch summary cache txt cord-325300-wawui0fd Tulchinsky, Theodore H. 4 Communicable Diseases 2000-12-31 .txt text/plain 31276 1672 47 No less important are organized programs to promote self protection, case finding, and effective treatment of infections to stop their spread to other susceptible persons (e.g., HIV, sexually transmitted diseases, tuberculosis, malaria). Very great progress has been made in infectious disease control by clinical, public health, and societal means since 1900 in the industrialized countries and since the 1970s in the developing world. The WHO in 1998 has declared hepatitis prevention as a major public health crisis, with an estimated 170 million persons infected worldwide (1996) , stressing that this "silent epidemic" is being neglected and that screening of blood products is vital to reduce transmission of this disease as for HIu HCV is a major cause of chronic cirrhosis and liver cancer. Varicella vaccine is now recommended for routine immunization at age 12-18 months in the United States, with catch-up for children up to age 13 years and for occupationally exposed persons in health or child care settings. ./cache/cord-325300-wawui0fd.txt ./txt/cord-325300-wawui0fd.txt