highly contagious and often severe viral infection of the respiratory tract. Spread  through direct contact with respiratory secretion droplets

fecal oral (through contaminated water, raw veggies, and raw oysters

place the pathogen lives and reproduces

any body opening on an uninfected person that  allows pathogens to enter

digestive tract of humans, reptiles or birds

a sore throat caused by streptococcal bacteria. Spread through direct contact with an infected individual and respiratory secretions

An airborne bacterial infection that affects mostly children younger than 6 years Patients will be feverish and exhibit a "whoop" sound on inspiration after a coughing attack; highly contagious through droplet infection

Apathogen, such as a bacteria, virus, fungus or parasite that can cause a disease

how infectious microorganisms move to another  location 

staphylococcal infections (staphylococcus aureus)

streptococcal infections

a person likely to get an infection or disease usually because body defenses are weak

human gut

Miscarriage, still birth and fetal abnormalities are group of anomalies seen

a way for the infectious agent to escape from the reservoir in which it has been growing