CHAIN OF INFECTION ANYONE!. Each link has a unique role in the chain, and each can be interrupted, or broken, through various means

Recovered but still transmit disease.

Transmit disease during the incubation period.

Diseases may be transmitted from animals to humans (______), with humans as incidental hosts. Examples of ———— diseases: brucellosis, anthrax, plague, tularemia, rabies.

Many infectious diseases are transmitted from person to person, e.g., sexually transmitted diseases, measles, mumps, and respiratory pathogens.

Breaking the Chain of Infection - Cover wounds, avoid contaminated food.

Breaking the Chain of Infection - Use antibiotics, wash hands.

is the habitat in which the agent normally lives, grows, and multiplies

CHAIN OF INFECTION Mouth, Nose, Eyes and Cuts in skin

CHAIN OF INFECTION Direct Contact, Indirect Contact and Vectors

Breaking the Chain of Infection - Strengthen immunity through exercise, nutrition, and vaccinations.

Breaking the Chain of Infection - Isolate infected individuals.

METHOD OF TRANSMISSION Through intermediate hosts (e.g., contaminated objects, animals, food).

Breaking the Chain of Infection - Block pathogen release (e.g., cover mouth when sneezing).

Plants, soil, and water can harbor infectious agents. Example: Legionnaires' disease linked to contaminated water supplies (Legionella pneumophila).

CHAIN OF INFECTION People, Animals, Soil, Food & Water

The exit path for pathogens from the host (e.g., respiratory tract, urine, feces, blood, skin, placenta). Examples: include influenza, tuberculosis, rubella, syphilis, malaria.

METHOD OF TRANSMISSION Via body fluids (e.g., blood, secretions).

Ways pathogens enter new hosts: broken skin, mouth, nose, eyes, genitals, insect bites.

Hosts with little resistance to pathogens, making them vulnerable to infections. - Carriers can spread disease unknowingly.

Infected but show no symptoms.

Harbor pathogens for extended periods (e.g., hepatitis B, Salmonella Typhi). Carriers unknowingly spread diseases due to lack of symptoms.

CHAIN OF INFECTION Bacteria, Fungi, Parasite & Virus

Diseases may be transmitted from animals to humans (zoonosis), with humans as incidental hosts. Examples of zoonotic diseases: brucellosis, anthrax, plague, tularemia, rabies.

CHAIN OF INFECTION Coughing/Sneezing, Bodily Secretions and Feces

Breaking the Chain of Infection - Control vectors, treat sewage, chlorinate water.