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Associated Diseases
Poor hand hygiene can contribute to a wide range of diseases, including:
i. Respiratory Infections: Poor hand hygiene is a major factor in the spread of respiratory
infections, such as the common cold, influenza, and pneumonia. These infections can cause
coughing, sneezing, difficulty breathing, and in severe cases, can lead to hospitalization and
even death.
ii. Gastrointestinal Illnesses: Germs from unwashed hands can easily contaminate food and
water, causing gastrointestinal infections, such as diarrhea, vomiting, and abdominal cramps.
These illnesses can lead to dehydration, electrolyte imbalance, and potential malnutrition,
further weakening the immune system.
iii. Skin Infections: Poor hand hygiene can increase the risk of skin infections, such as impetigo
and cellulitis. These infections can cause blisters, itching, and scarring, and in severe cases, can
lead to complications like sepsis.
iv. Eye Infections: Germs from unwashed hands can easily transfer to the eyes, causing
conjunctivitis (pink eye), which can lead to redness, itchiness, and discharge.
v. Foodborne Illnesses: Poor hand hygiene among food handlers can lead to contamination of
food, causing foodborne illnesses, such as salmonellosis, E. coli infection, and norovirus, which
can cause diarrhea, vomiting, and abdominal cramps.
2. Dental Hygiene Neglect
Dental hygiene and immune system are interconnected, as oral health significantly impacts immunity.
Poor dental hygiene can compromise the immune system, leading to various health issues and affecting
body’s ability to defend against infections [7]. Following are the few factors through which oral hygiene
influences immune system:
i. Oral Health and Inflammation: Gum disease such as periodontal disease caused by bacterial
buildup can lead to inflammation in the gums. Chronic inflammation in the mouth can trigger
an immune response, increasing the production of inflammatory substances that may affect the
entire body, potentially weakening the immune system.
ii. Oral Bacteria and Systemic Health: Bacteria present in the mouth can enter the bloodstream
through inflamed gums. If left untreated, these bacteria might travel to other parts of the body,
contributing to systemic health issues. Studies suggest links between poor oral health and
conditions such as cardiovascular disease (e.g. Endocarditis, an infection of the inner lining of
the heart), diabetes, and respiratory infections (chronic obstructive pulmonary disease).
iii. Immune Response to Oral Infections: The body's immune system responds to oral infections,
deploying immune cells to fight off bacteria and viruses. However, chronic or severe oral
infections can strain the immune system, diverting its resources from combating other
infections elsewhere in the body.
iv. Nutritional Imbalances: Poor oral health can interfere with nutrient absorption, as
inflammation and infection in the mouth can disrupt the digestive process. Nutritional
deficiencies can compromise the immune system's ability to produce antibodies and other
essential defense mechanisms