B2 adjective Neutral

Infectious

/ɪnˈfek.ʃəs/

Describing a disease or disease-causing organism that is likely to be transmitted to people or organisms through the environment.

Ejemplos

3 de 5
1

Be careful, this flu is very infectious.

Watch out, this illness spreads easily from person to person.

2

The ward is strictly for patients with infectious diseases.

This hospital area is only for people with illnesses that spread.

3

Her enthusiasm is totally infectious!

Her excitement makes everyone else excited too (metaphorical).

Familia de palabras

Sustantivo
infection
Verb
infect
Adverbio
infectiously
Adjetivo
infectious
💡

Truco para recordar

Infectious = 'In' (inside) + 'fect' (make) — it 'makes' its way 'inside' others.

Quiz rápido

Chickenpox is a highly ____ disease common among children.

¡Correcto!

La respuesta correcta es: infectious

Ejemplos

1

Be careful, this flu is very infectious.

everyday

Watch out, this illness spreads easily from person to person.

2

The ward is strictly for patients with infectious diseases.

formal

This hospital area is only for people with illnesses that spread.

3

Her enthusiasm is totally infectious!

informal

Her excitement makes everyone else excited too (metaphorical).

4

The study examines the spread of infectious agents in urban environments.

academic

The research looks at how germs spread in cities.

5

We need to limit infectious contact in the office during peak flu season.

business

We must reduce how much germs spread at work when flu is common.

Familia de palabras

Sustantivo
infection
Verb
infect
Adverbio
infectiously
Adjetivo
infectious

Colocaciones comunes

infectious disease an illness that spreads
highly infectious spreads very easily
infectious agent a germ that causes disease
infectious laughter laughter that makes others laugh
infectious ward a hospital room for spreading illnesses

Frases Comunes

infectious waste

trash that contains germs

period of infectiousness

the time when you can spread a disease

infectious smile

a smile that makes others smile

Se confunde a menudo con

Infectious vs contagious

Contagious means spread by touch; infectious means spread by germs (often through air/water).

📝

Notas de uso

Commonly used both literally for diseases and figuratively for emotions like laughter or excitement.

⚠️

Errores comunes

Learners often use 'infective' instead of 'infectious', but 'infectious' is much more common.

💡

Truco para recordar

Infectious = 'In' (inside) + 'fect' (make) — it 'makes' its way 'inside' others.

📖

Origen de la palabra

From Latin 'infectiosus', from 'inficere' (to taint or dye).

Patrones gramaticales

highly infectious infectious to (someone)

Quiz rápido

Chickenpox is a highly ____ disease common among children.

¡Correcto!

La respuesta correcta es: infectious

Más palabras de health

doctor

A1

A doctor is a person who has been trained in medicine and is qualified to treat people who are ill or injured. They examine patients, give advice on health problems, and prescribe medication when necessary.

medicine

A2

Medicine is a substance used to treat, prevent, or cure an illness or injury. It can also refer to the science and practice of diagnosing and treating patients to improve their health.

exercise

A2

Physical activity that you do to make your body strong and healthy. It can include activities like running, swimming, or going to the gym to improve your fitness.

hospital

A1

A hospital is a large building where doctors and nurses provide medical care for people who are sick or injured. It contains specialized equipment and rooms for treatments, surgeries, and staying overnight while recovering.

healthy

A2

Healthy describes someone who is in good physical or mental condition and is not ill. It can also describe activities, food, or environments that help you stay well and strong.

Prescription

B2

A formal document or digital order issued by a medical practitioner that authorizes a patient to be provided with a specific medicine or treatment. It can also refer to the medicine itself.

Symptom

B2

A physical or mental feature which is regarded as indicating a condition of disease, particularly such a feature that is apparent to the patient.

Diagnosis

B2

The identification of the nature of an illness or other problem by examination of the symptoms and signs.

Physician

B2

A person qualified to practice medicine, especially one who specializes in diagnosis and medical treatment rather than surgery.

Chronic

B2

Persisting for a long time or constantly recurring. Usually applied to a medical condition that lasts for three months or more.

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