Tuberculosis (TB) affects people of all ages, but the risk and severity vary across different age groups. While TB can occur in any age group, certain populations are more vulnerable.
Age Groups at Higher Risk:
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Children under 5: Young children are particularly susceptible to developing severe active TB disease and tend to get sick more quickly than adults. Source: CDC - Tuberculosis in Children
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Older adults (65+): Individuals aged 65 and older also face a higher risk of developing more severe active TB disease due to a weakened immune system. Source: Mayo Clinic - Tuberculosis The mortality rate from TB is highest in this age range. Source: PMC - Tuberculosis in the Elderly
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Adults 35-54: Data from India shows a significantly higher prevalence of TB infection in this age group, with rates peaking in the 45-54 age bracket. Source: Prevalence and factors associated with tuberculosis infection in India
Prevalence Across Age Groups:
While certain age groups exhibit a higher risk, it's crucial to remember that TB can affect all ages. Studies show varying prevalence rates across different age ranges. For instance, data from one study shows increasing prevalence rates from the 15-24 age group to the 45-54 age group. However, other studies highlight the increased risk and severity of disease in children under 5 and adults over 65.
Other Factors Influencing Risk:
It is important to note that age is just one factor influencing TB risk. Other factors include:
- Weakened immune system: Individuals with HIV/AIDS or other immune deficiencies are at significantly higher risk. Source: CDC - TB 101
- Exposure to infected individuals: Close contact with someone who has active TB disease substantially increases the risk of infection.
