Common Bacteria MPharm 2

Is Staphylococcus aureus gram positive or negative?

Positive - purple

Is Staphylococcus Sp. gram positive or negative?

Positive - purple

Is Streptococcus pyogenes gram positive or negative?

Positive - purple

Is Streptococcus pneumoniae gram positive or negative?

Positive - purple

Is Streptococcus Sp. gram positive or negative?

Positive - purple

Is Enterococcus faecalis gram positive or negative?

Positive - purple

Is Clostridioides difficile gram positive or negative?

Positive - purple

Is Mycobacterium tuberculosis gram positive or negative?

Not readily classified by Gram stain - use acid fast

Is Neisseria meningitidis gram positive or negative?

Negative

Is Haemophilus influenzae gram positive or negative?

Negative

Is Escherichia coli gram positive or negative?

Negative

Is Pseudomonas aeruginosa gram positive or negative?

Negative

Is Klebsiella pneumoniae gram positive or negative?

Negative

Is Salmonella enterica gram positive or negative?

Negative

Is Helicobacter pylori gram positive or negative?

Negative

Is Chlamydia trachomatis gram positive or negative?

It’s atypical - lacks a peptidoglycan cell wall so doesn’t respond to gram staining

Is Neisseria gonorrhoeae gram positive or negative?

Negative

What type of microorganism is Candida albicans?

Yeast (fungi)

What type of microorganism is Trichophyton sp.?

Fungi

What type of microorganism is Aspergillus spp?

Mould (fungi)

What type of microorganism is Influenza?

Virus

What does HIV stand for?

Human Immunodeficiency Virus

What does VZV stand for?

Varicella-zoster virus