WORLDWIDE CONTACT US ABOUT US PRODUCTS RESEARCH LICENSING NEWSROOM CAREERS INVESTORS Home YOU, YOUR PETS, AND PARASITES About Us Corporate Responsibility Reimbursement Support and Patient Assistance Programs Leadership Board of Directors Executive Committee Our Work How We Operate Code of Conduct Compliance Privacy Transparency and Privacy Internet Privacy Policy Cookie Privacy Commitment Cross Border Policy Employment Privacy & Data Protection Diversity Employee Diversity Supplier Diversity Views and Positions Access and Affordability Access to Investigational Medicines Innovation Quality and Safety Sales and Marketing Responsible Public Policy and Advocacy Our History Our People Featured Stories Your pet is your friend and companion. The parasites that might infect them, however, are most definitely not. It is fairly common for your dog or cat to get a parasite (or two or three) at one point in their lives. And as a pet owner, it’s up to you to be informed about what can infect, and possibly harm, your pets. Test your parasite knowledge below. SHARE: MERCK ANIMAL HEALTH Learn more about Merck Animal Health and our dedication to preserving and improving the health, well-being and performance of animals through science. Copyright © 2009-2016 Merck Sharp & Dohme Corp., a subsidiary of Merck & Co., Inc. All rights reserved. Forward-Looking Statement Privacy Terms of Use Site Map

WORLDWIDE CONTACT US ABOUT US PRODUCTS RESEARCH LICENSING NEWSROOM CAREERS INVESTORS Home LUNG CANCER has been the most common cancer in the world for several decades. It is the leading cause of cancer death in men in 87 countries and in women in 26 countries. And, it is the leading cause of cancer deaths in the U.S. among men and women. 80 % About 80 percent of lung cancer deaths in the U.S. are thought to result from smoking. The risk for lung cancer among smokers is many times higher than among non-smokers. The longer you smoke and the more packs a day you smoke, the greater your risk. However, each year, approximately 16,000 TO 24,000 AMERICANS DIE OF LUNG CANCER, EVEN THOUGH THEY HAVE NEVER SMOKED. In fact, if lung cancer in nonsmokers had its own separate category, it would rank among the top 10 fatal cancers in the U.S. While smoking is the number one risk factor for lung cancer, some other risk factors include exposure to secondhand smoke, radon and some workplace substances (i.e., asbestos, arsenic), and family history. Learn more about these risk factors and others at Centers for Disease Control – What are the Risk Factors? WATCH THE VIDEO: "THE STIGMA OF LUNG CANCER" 224,390 It is estimated that about 224,390 NEW CASES of lung cancer will be diagnosed in the U.S. in 2016 OVERALL, THE CHANCE THAT A MAN WILL DEVELOP LUNG CANCER IN HIS LIFETIME IS ABOUT 1 IN 14; FOR A WOMAN, THE RISK IS ABOUT 1 IN 17 VIEW FULL INFOGRAPHIC ADDITIONAL RESOURCES Copyright © 2009-2016 Merck Sharp & Dohme Corp., a subsidiary of Merck & Co., Inc. All rights reserved. Forward-Looking Statement Privacy Terms of Use Site Map .