Passport Health logo
Vaccinations|Find a Travel Clinic|Advice
  • Home
    • About
        • Company History
        • Careers
        • Executive Team
        • Contact Us
        • Customer Feedback
        • FAQ
        • Mission Statement
        • Privacy Policy
        • Blog
    • Close
  • Destination Advice
    • Top Destinations
        • Brazil
        • China
        • Costa Rica
        • India
        • Kenya
        • Peru
        • Philippines
        • South Africa
        • Thailand
        • Vietnam
    • Destination Advice
        • Tips and recommendations for healthy travel to any destination:

          • Afghanistan
          • Albania
          • Algeria
          • American Samoa
          • Andorra
          • Angola
          • Anguilla
          • Antarctica
          • Antigua and Barbuda
          • Argentina
          • Armenia
          • Aruba
          • Australia
          • Austria
          • Azerbaijan
          • Azores
          • Bahamas
          • Bahrain
          • Balearics
          • Bangladesh
          • Barbados
          • Belarus
          • Belgium
          • Belize
          • Benin
          • Bhutan
          • Bolivia
          • Bonaire
          • Bora Bora
          • Bosnia
          • Botswana
          • Brazil
          • British Virgin Islands
          • Brunei
          • Bulgaria
          • Burkina Faso
          • Burma
          • Burundi
          • Cambodia
          • Cameroon
          • Canada
          • Canary Islands
          • Cape Verde
          • Cayman Islands
          • Central African Republic
          • Chad
          • Chile
          • China
          • Christmas Island
          • Cocos (Keeling) Islands
          • Colombia
          • Comoros
          • Cook Islands
          • Costa Rica
          • Cote d'Ivoire
          • Croatia
          • Cuba
          • Curacao
          • Cyprus
          • Czechia
          • Democratic Republic of the Congo
          • Denmark
          • Djibouti
          • Dominica
          • Dominican Republic
          • East Timor
          • Easter Island
          • Ecuador
          • Egypt
          • El Salvador
          • Equatorial Guinea
          • Eritrea
          • Estonia
          • Ethiopia
          • Falkland Islands
          • Faroe Islands
          • Fiji
          • Finland
          • France
          • French Guiana
          • French Polynesia
          • Gabon
          • Gambia
          • Georgia
          • Germany
          • Ghana
          • Gibraltar
          • Greece
          • Greenland
          • Grenada
          • Guadeloupe
          • Guam
          • Guatemala
          • Guinea-Bissau
          • Guinea
          • Guyana
          • Haiti
          • Hawaii
          • Honduras
          • Hong Kong
          • Hungary
          • Ibiza
          • Iceland
          • India
          • Indonesia
          • Iran
          • Iraq
          • Ireland
          • Israel
          • Italy
          • Jamaica
          • Japan
          • Jordan
          • Kazakhstan
          • Kenya
          • Kiribati
          • Kosovo
          • Kuwait
          • Kyrgyzstan
          • Laos
          • Latvia
          • Lebanon
          • Lesotho
          • Liberia
          • Libya
          • Liechtenstein
          • Lithuania
          • Luxembourg
          • Macau
          • Macedonia
          • Madagascar
          • Madeira Islands
          • Malawi
          • Malaysia
          • Maldives
          • Mali
          • Malta
          • Marshall Islands
          • Martinique
          • Mauritania
          • Mauritius
          • Mayotte
          • Mexico
          • Micronesia
          • Moldova
          • Monaco
          • Mongolia
          • Montenegro
          • Montserrat
          • Morocco
          • Mozambique
          • Namibia
          • Nauru
          • Nepal
          • Netherlands
          • New Caledonia
          • New Zealand
          • Nicaragua
          • Niger
          • Nigeria
          • Niue
          • Norfolk Island
          • North Korea
          • Northern Mariana Islands
          • Norway
          • Oman
          • Pakistan
          • Palau
          • Palestinian Territories
          • Panama
          • Papua New Guinea
          • Paraguay
          • Peru
          • Philippines
          • Pitcairn Islands
          • Poland
          • Portugal
          • Puerto Rico
          • Qatar
          • Republic of the Congo
          • Réunion
          • Romania
          • Russia
          • Rwanda
          • Saba
          • St. Barthelemy
          • Saint Helena
          • St. Kitts and Nevis
          • St. Lucia
          • Saint Martin
          • St. Pierre-et-Miquelon
          • St. Vincent and the Grenadines
          • Samoa
          • San Marino
          • Sao Tome and Principe
          • Saudi Arabia
          • Senegal
          • Serbia
          • Seychelles
          • Sierra Leone
          • Singapore
          • Sint Eustatius
          • Slovakia
          • Slovenia
          • Solomon Islands
          • Somalia
          • South Africa
          • South Georgia and the South Sandwich Islands
          • South Korea
          • South Sudan
          • Spain
          • Sri Lanka
          • Sudan
          • Suriname
          • Swaziland
          • Sweden
          • Switzerland
          • Syria
          • Tahiti
          • Taiwan
          • Tajikistan
          • Tanzania
          • Thailand
          • Togo
          • Tokelau
          • Tonga
          • Trinidad and Tobago
          • Tunisia
          • Turkey
          • Turkmenistan
          • Turks and Caicos Islands
          • Tuvalu
          • U.S. Virgin Islands
          • Uganda
          • Ukraine
          • United Arab Emirates
          • United Kingdom
          • United States
          • Uruguay
          • Uzbekistan
          • Vanuatu
          • Vatican
          • Venezuela
          • Vietnam
          • Wake Island
          • Western Sahara
          • Yemen
          • Zambia
          • Zimbabwe
    • Close
  • Travel Medicine
    • Travel Medical Services
        • Vaccines for Travel
        • Travel Health Consulting
        • Travellers’ Diarrhea Kits
        • Dengue Fever Prevention
        • Malaria Medication
        • Chikungunya Prevention
        • Zika Virus Prevention
        • Ebola Virus
        • Coronavirus
        • Travel Health Alerts
    • Additional Travel Services
      • Physician Referral Program
    • Close
  • Vaccinations
    • Overview
        • Chickenpox
        • Cholera (Dukoral)
        • Hepatitis A
        • Hepatitis B
        • Hep A/Typhoid Combo (Vivaxim)
        • Human Papillomavirus (HPV)
        • Japanese Encephalitis
        • Malaria Information
        • Measles – Mumps – Rubella (MMR)
        • Meningitis
        • Pneumonia
        • Polio
        • Rabies
        • Shingles
        • Tetanus-Diphtheria-Pertussis
        • Typhoid
        • Yellow Fever
        • Drug Identification Numbers (DIN)
    • Influenza (The Flu)
        • Learn more about your flu vaccine options
          • For most individuals
          • For seniors over 65 years
    • Routine Tests
      • TB Tests
      • Routine Vaccinations
        • Overview
    • Close
  • Employer Solutions
    • Overview
      • Travel Medicine & Vaccinations
      • Onsite Flu Clinics
      • Retirement Community Flu Program
      • Onsite Vaccination Clinics
      • Biometric Screenings
      • Vaccine Credentialing
    • Close
  • Locations
        • Ontario

          Barrie Travel Clinic

          Brampton Travel Clinic

          Carlington - Ottawa Travel Clinic

          Etobicoke Travel Clinic

          Kitchener Travel Clinic

          London Travel Clinic

          Markham Travel Clinic

          Mississauga Travel Clinic

          Oakville Travel Clinic

          Richmond Hill Travel Clinic

          St. Catharines Travel Clinic

          Toronto Travel Clinic

          Whitby Travel Clinic

          Yorkville Travel Clinic

        • Alberta

          Chinook - Calgary Travel Clinic

          Downtown Calgary Travel Clinic

          Downtown Edmonton Travel Clinic

        • British Columbia

          Burnaby Travel Clinic

          Downtown Vancouver Travel Clinic

          North Vancouver Travel Clinic

          Surrey Travel Clinic

        • Quebec

          Downtown Montreal Travel Clinic

          Laval Travel Clinic

          Québec City Travel Clinic

          Westmount Travel Clinic

    • Close

How Common is Latent Tuberculosis?

September 26, 2018 By Caitlin Hartwyk

About 20 percent of the world's population could be at risk of latent tuberculosis.

The topic of latent tuberculosis has been a subject of debate recently. How common is it really?

Tuberculosis is a lung disease transferred from person to person by infected particles in the air. This makes tuberculosis highly contagious. But, even though the disease is airborne, not everyone who comes in contact with TB will become infected.

There are two types of tuberculosis: tuberculosis disease and latent tuberculosis.

We know the ongoing dangers of tuberculosis disease. Even with the help of modern medicine, tuberculosis continues to be one of the world’s most dangerous diseases.

So, what makes latent TB different?

Latent tuberculosis is when an individual is infected, but does not have the tuberculosis disease. Those with latent tuberculosis are not infectious and thus can’t spread the disease to others. Although, they are at risk of developing tuberculosis later in life.

According to the CDC, an individual with latent tuberculosis usually tests positive for TB with a skin test, but has no symptoms.

The WHO published their yearly global tuberculosis report on September 18. The reports showed about 20 percent of the world’s population has latent tuberculosis.

This shocked many and terrified researchers around the world. It left some wondering if we were doing enough to prevent tuberculosis in all parts of the world. Yes, the chances of death resulting from tuberculosis has decreased over the years due to detection and treatment. But, the disease still poses a lethal risk, with 16 percent of people dying due to complications with tuberculosis.

The news that one-fifth of people have latent tuberculosis means that cases of tuberculosis may actually be on the rise in the future, instead of a decline.

But, not every researcher is convinced of those high numbers.

The New York Times responded to the WHO study stating that these numbers were a “gross exaggeration” because the majority of latent tuberculosis cases are inactive, giving no cause for alarm.

A report from BMJ earlier in 2018 addressed the incubation period of tuberculosis. The report included experts in the fields of medicine, pathology, infectious diseases and others. According to those sources, TB has quite a short incubation period.

According to this report, most people who eventually contract TB due to latent tuberculosis have it occur within two years of infection. This would lessen the worry of tuberculosis cases rising significantly in the future.

So, we have two conflicting reports on this subject. But, regardless of these conflicting reports, what can we learn from these numbers? What does this mean for the prevention and treatment of latent tuberculosis around the world?

Despite what numbers or predictions are correct, tuberculosis is still a major problem in the world.

Tuberculosis remains the deadliest disease in the world with the infection killing 4,000 people every day.

The worst part about this disease is that it can be easily preventable. Early detection is crucial in eliminating tuberculosis. Accessible TB tests make that detection much easier. The variety of anti-tuberculosis medications also make the disease much easier to treat.

Although, not everyone has access to this treatment.

Tuberculosis is largely a problem in poorer countries. Individuals in these countries are 50 times more likely to get TB than in wealthier countries.

According to the WHO report, there is a gap of over three billion dollars between the financing needed to fight tuberculosis and the funds that are available in 2018. If this doesn’t change, the gap will exceed six billion dollars by 2022.

Did you know that latent tuberculosis was a risk? Had you heard of the ongoing TB problems around the world? Let us know in the comments, or via Facebook and Twitter.

Written for Passport Health by Kaitlyn Luckow. Kaitlyn is a freelance writer, photographer and English teacher in Milwaukee. She has a passion for capturing and writing other people’s stories. You can find her at sayhellostory.com.

Filed Under: General Posts

About Us

Passport Health's blog provides travelers and travel enthusiasts with a variety of news and features. We focus on bringing the most interesting and relevant stories right to our readers. Topics range from the vaccines needed for a destination to updates on recent outbreaks, travel advice and much more. Feel free to check out some of our most popular posts, linked in the sidebar, or our most recent posts below
Stay Updated! Sign up to receive email updates from our blog.

Recent Blog Posts

  • How Does Measles Spread? A New Study Gives Answers
  • The Necessary and Unfortunate Identity of “Patient Zero”
  • What Was The Plague of Justinian? How A Single Outbreak Killed 10% Of The World’s Population.
  • Tips To Stay Safe While Traveling Alone

Blog Archives

  • About Us
  • Clinical Trials
  • Contact Us
  • PIPEDA Policy and Consent Form
  • Privacy Policy
  • Cookie Policy
  • Sitemap
Schedule Your Appointment:
Questions? Please call or E-mail Us

Connect With Us:

Passport Health Canada on Facebook
Passport Health on Twitter
Passport Health on YouTube
Passport Health on Instagram
Passport Health on Linked In
Passport Health Feed

Passport Health is an Outlier business Passport Health es una empresa que pertenece al grupo OutlierPassport Health est une entreprise du groupe Outlier Copyright © 2021

This website or its third-party tools use cookies to improve functionality and performance. By continuing to browse this site, you are consenting to the use of cookies illustrated in our cookie policy.Accept