cuts or mucous membranes
ingestion of food and water
inhalation
Pathogens (bacteria and viruses that cause disease) can enter the body through various passages. Skin provides good protection against entry from pathogens so your vulnerable areas are your eyes, nose, mouth, ears and open wounds. Your (unwashed) hands can deliver pathogens to these areas. Airborne pathogens will enter through the mouth or nose as you breath them in. Pathogens in food will enter through your mouth into your digestive system. Pathogens can also enter through "vectors" directly into the blood stream - through mosquitos, fleas, ticks or contaminated needles, for example. It is important to remember that the body has many natural defenses to prevent pathogens entering the body, such as blood clotting at wounds, and enzymes in the eyes, nose and mouth that break down harmful bacteria.
I can get the ball rolling with four:droplets of pathogens as a result of coughing or sneezing can be inhaled and cause infections once inside our lungs,sexual contact can transfer pathogens from one person to another,if you have a cut or a break in your skin, microbes can gain direct access to your bloodstream,by consuming contaminated food and drink..I can add... Airborne transmission, bloodborne transmission, foodborne transmission, transmission by touching, transmission during pregnancy or birth, and vector-borne transmission.
Water is essential for the body's functions, including regulating body temperature, aiding in digestion, and transporting nutrients and oxygen to cells.
Pathogens can infect humans through inhalation of respiratory droplets, contact with contaminated surfaces and objects, ingestion of contaminated food or water, and through bites from infected animals.
Foreign materials can enter the body through ingestion, inhalation, or injection. This can happen through consuming contaminated food or water, breathing in airborne particles or pollutants, or through broken skin that allows entry of foreign substances.
When pathogens enter the body, they begin to cause disease. Path=disease+ gen=to make (or generate).
Inject them? i dno, loads of ways!
pathogens antigens
There are a few ways that blood borne pathogens can enter the human body. The routes of transmission include sexual activity, contact with blood and bodily fluids, and accidental sticks with a needle in a health care setting.
Inhilation Cuts or mucous membranes Ingestion of food and water
Pathogens (bacteria and viruses that cause disease) can enter the body through various passages. Skin provides good protection against entry from pathogens so your vulnerable areas are your eyes, nose, mouth, ears and open wounds. Your (unwashed) hands can deliver pathogens to these areas. Airborne pathogens will enter through the mouth or nose as you breath them in. Pathogens in food will enter through your mouth into your digestive system. Pathogens can also enter through "vectors" directly into the blood stream - through mosquitos, fleas, ticks or contaminated needles, for example. It is important to remember that the body has many natural defenses to prevent pathogens entering the body, such as blood clotting at wounds, and enzymes in the eyes, nose and mouth that break down harmful bacteria.
The body can use physical barriers like skin and mucus membranes, the immune system to detect and eliminate pathogens, inflammation to recruit immune cells to the site of infection, and fever to create an inhospitable environment for pathogens.
absorb, inject, inhale, ingest, splash
absorption, injection, ingestion and breathing
The most common ways are to snort, swallow, smoke, inject into a vein, or inject into a muscle.
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Anabolic steroids can enter the body by injection or in pill form