8.2 Flashcards
other sources of infection
virus
viruses aren’t cells, considered non-living, virus hijacks the host cells to make new viruses
cold
infects cells of the nose and throat, inflammation and extra mucus produced makes breathing difficult
cold prevention
covering mouth, frequent hand wash and remain in quarantine when sick
flu
caused by influenza, causes high fever and boy aches
immunosuppressed
immune system is weakened (infants and elderly)
measles
caused by viral pathogen spread by coughing and sneezing
symptoms of measles
red rash, hearing and brain damage
chicken pox
begins with runny nose and fever, virus can remain inactive for 2-3 decades and resurface as shingles
chicken pox symptoms
itchy red blisters, runny nose, fever
prevention of viruses?
vaccination
antiviral drugs
prevents viruses from reproducing inside a host cell
nanomedicine
contains nanotraps and enzymes to disturb virus reproduction
parasites
organism that lives in or on a host organism
malaria
Plasmodium - single celled protist, found in mosquito (vector) saliva
malaria prevention
wearing protective clothing, insect repellent
amoebic dysentery
caused by water contaminated with pathogenic amoebae, causes bloody stool, diarrhea, fever and even death
fungi
produces spores which causes infection
fungal infections
can spread by skin to skin contact, sharing clothing and walking on contaminated floors barefoot
tinea
grows on skin, hair and nails, attacks living skin cells causing inflammation and itching turning skin red (red ring)
thrush
fungi naturally occurs in the body, forms uncomfortable white patches
