Uploaded May 2025 | Updated September 2026, 4 hours ago
Johns Hopkins Bloomberg School of Public Health experts Nicole Baumgarth and Thomas Hart discuss ticks and the growing threat of Lyme and other tickborne diseases.
Lyme disease is on the rise in the U.S., according to the CDC, mainly in the Northeast, Upper Midwest, and parts of the West. In 2023, state health departments reported more than 89,000 cases of Lyme disease in humans to the CDC, but the actual number of cases is likely much higher due to underreporting and misdiagnosis.
If left untreated, Lyme disease can lead to serious complications affecting the heart, joints, and nervous system. Other tickborne illnesses are also of concern, including Powassan virus and Heartland virus. There is currently no vaccine against tickborne illnesses.
Ticks Pose an Increasing Health Risk
https://publichealth.jhu.edu/2025/tickborne-diseases-in-the-us
Tickborne Diseases Are on the Rise—Here’s What To Know
https://publichealth.jhu.edu/2023/lyme-disease-isnt-the-only-tickborne-disease-to-watch
Lyme and Tickborne Diseases Research and Education Institute video
youtu.be/0Q7Fb5jhKT0
Ticks Are Dangerous video
youtu.be/620lAODJYSQ
About Ticks and Tickborne Disease
cdc.gov/ticks/about/index.html#:~:text=Tickborne%20diseases%20can%20cause%20headache,tularemia%20can%20cause%20distinctive%20rashes.
Lyme Disease Surveillance and Data
cdc.gov/lyme/data-research/facts-stats/index.html
Lyme Disease
cdc.gov/lyme/index.html
00:00 Introduction
01:40 What is Lyme disease
04:12 Rates of Lyme disease
9:10 Status of a vaccine
10:30 Tracking infection rates
11:25 Vaccine challenges
13:30 Ubiquity of tick bites
14:45 Diagnosing lesser known tickborne illnesses
16:10 How to improve diagnosis
19:00 Diagnosing illnesses
20:10 This year’s tick season
20:40 Symptoms of Lyme disease
22:10 Other tickborne illnesses
23:20 Dogs and ticks
24:40 Ticks in the environment
25:30 Preventing tick bites
https://publichealth.jhu.edu
instagram.com/JohnsHopkinsSPH
facebook.com/JohnsHopkinsSPH
twitter.com/johnshopkinssph
Johns Hopkins Bloomberg School of Public Health experts Nicole Baumgarth and Thomas Hart discuss ticks and the growing threat of Lyme and other tickborne diseases.
Lyme disease is on the rise in the U.S., according to the CDC, mainly in the Northeast, Upper Midwest, and parts of the West. In 2023, state health departments reported more than 89,000 cases of Lyme disease in humans to the CDC, but the actual number of cases is likely much higher due to underreporting and misdiagnosis.
If left untreated, Lyme disease can lead to serious complications affecting the heart, joints, and nervous system. Other tickborne illnesses are also of concern, including Powassan virus and Heartland virus. There is currently no vaccine against tickborne illnesses.
Ticks Pose an Increasing Health Risk
https://publichealth.jhu.edu/2025/tickborne-diseases-in-the-us
Tickborne Diseases Are on the Rise—Here’s What To Know
https://publichealth.jhu.edu/2023/lyme-disease-isnt-the-only-tickborne-disease-to-watch
Lyme and Tickborne Diseases Research and Education Institute video
youtu.be/0Q7Fb5jhKT0
Ticks Are Dangerous video
youtu.be/620lAODJYSQ
About Ticks and Tickborne Disease
cdc.gov/ticks/about/index.html#:~:text=Tickborne%20diseases%20can%20cause%20headache,tularemia%20can%20cause%20distinctive%20rashes.
Lyme Disease Surveillance and Data
cdc.gov/lyme/data-research/facts-stats/index.html
Lyme Disease
cdc.gov/lyme/index.html
00:00 Introduction
01:40 What is Lyme disease
04:12 Rates of Lyme disease
9:10 Status of a vaccine
10:30 Tracking infection rates
11:25 Vaccine challenges
13:30 Ubiquity of tick bites
14:45 Diagnosing lesser known tickborne illnesses
16:10 How to improve diagnosis
19:00 Diagnosing illnesses
20:10 This year’s tick season
20:40 Symptoms of Lyme disease
22:10 Other tickborne illnesses
23:20 Dogs and ticks
24:40 Ticks in the environment
25:30 Preventing tick bites
https://publichealth.jhu.edu
instagram.com/JohnsHopkinsSPH
facebook.com/JohnsHopkinsSPH
twitter.com/johnshopkinssph
