The following bacteria are Gram negative: Salmonella spp. and E. coli S. aureus and Streptococcus pyogenes Bacillus spp. and E. coli Staphylococcus aureus and E. coli O

hich of the following can produce inactive endospore-like bodies that are infectious to human epithelial cells?   Rickettsia   Echrlichia   Bartonella   Chlamydia   Caulobacter

The genus of bacteria with leaky cell walls which are transmitted among humans by direct contact is:

Escherichia coli is a good indicator of water pollution because this bacterium Group of answer choices -grows only in high-salt environments -forms spores -is commonly found in human intestines -is resistant to most antibiotics -undergoes mutations readily   Waterborne diseases begin as  -infections -intoxications -diseases -abrasions    A major organism considered to cause food-borne infection is Group of answer choices -Salmonella. -Staphylococcus. -Pseudomonas. -Bacillus.

Rank the following microbes in terms of their resistance to disinfectants: Gram-positive bacteria, Gram-negative bacteria, mycobacteria, bacterial endospores, vegetative protozoa, protozoan cysts, fungi, non-enveloped viruses, enveloped viruses.

Gram-Negative rods, Facultative anaerobe, Non-lactose fermeting, Oxidase-negative O Escherichia Pseudomonas Pasteurella Salmonella What genus could be determined by the following information? Bacteroides

Species from which genera are typically catalase positive?    Micrococcus            Staphylococcus            Streptococcus            Enterococcus            Lactococcus            All of the above

There have been many cases of human infection with Salmonella caused by contact (or ingestion) with raw or undercooked chicken. This is an example of which type of microbial source for foodborne illness? Contamination by human or animal feces during growing, harvesting, washing, transport, or storage Contamination by naturally occurring environmental organisms from soil or other sources A food animal - infection or colonization during its lifetime None of the other four answers are correct Contamination by human microbiota or pathogens during handling & preparation