Microbiology worksheet with answers

What is the most effective single measure to prevent the spread of infection in hospitals?

1. AWearing a face mask at all times
2. BHand hygiene
3. CGiving every patient antibiotics
4. DKeeping windows closed

Which is part of the body's first line of defence against infection?

1. AMemory B cells
2. BIntact skin
3. CCytotoxic T cells
4. DAntibodies

Lyme disease is transmitted to humans by:

1. AMosquito bites
2. BCoughing and sneezing
3. CTick bites
4. DContaminated water

Pneumocystis jirovecii pneumonia in a person with advanced HIV is an example of:

1. AA vector-borne infection
2. BA zoonotic infection
3. CAn opportunistic infection
4. DA food-borne infection

Which bacterium causes whooping cough (pertussis)?

1. AMycoplasma pneumoniae
2. BBordetella pertussis
3. CHaemophilus influenzae
4. DCorynebacterium diphtheriae

Which antibody class is the first to rise in a new infection?

1. AIgM
2. BIgA
3. CIgE
4. DIgG

In the 1840s Ignaz Semmelweis lowered deaths from puerperal fever in a Vienna maternity clinic. What did he introduce?

1. AHandwashing with chlorinated lime before examining women
2. BTreating mothers with penicillin
3. CVaccination of all mothers before birth
4. DKeeping mothers in separate isolation rooms after delivery

A patient taking high-dose immunosuppressive drugs after a transplant is due for vaccinations. Which vaccine type is generally avoided?

1. AToxoid vaccines
2. BSubunit vaccines
3. CInactivated whole-virus vaccines
4. DLive attenuated vaccines