Infectious
Describing a disease or disease-causing organism that is likely to be transmitted to people or organisms through the environment.
例文
3 / 5Be careful, this flu is very infectious.
Watch out, this illness spreads easily from person to person.
The ward is strictly for patients with infectious diseases.
This hospital area is only for people with illnesses that spread.
Her enthusiasm is totally infectious!
Her excitement makes everyone else excited too (metaphorical).
語族
覚え方のコツ
Infectious = 'In' (inside) + 'fect' (make) — it 'makes' its way 'inside' others.
クイックテスト
Chickenpox is a highly ____ disease common among children.
正解！
正解は： infectious
例文
Be careful, this flu is very infectious.
everydayWatch out, this illness spreads easily from person to person.
The ward is strictly for patients with infectious diseases.
formalThis hospital area is only for people with illnesses that spread.
Her enthusiasm is totally infectious!
informalHer excitement makes everyone else excited too (metaphorical).
The study examines the spread of infectious agents in urban environments.
academicThe research looks at how germs spread in cities.
We need to limit infectious contact in the office during peak flu season.
businessWe must reduce how much germs spread at work when flu is common.
語族
よく使う組み合わせ
よく使うフレーズ
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
よく混同される語
Contagious means spread by touch; infectious means spread by germs (often through air/water).
使い方のコツ
Commonly used both literally for diseases and figuratively for emotions like laughter or excitement.
よくある間違い
Learners often use 'infective' instead of 'infectious', but 'infectious' is much more common.
覚え方のコツ
Infectious = 'In' (inside) + 'fect' (make) — it 'makes' its way 'inside' others.
語源
From Latin 'infectiosus', from 'inficere' (to taint or dye).
文法パターン
クイックテスト
Chickenpox is a highly ____ disease common among children.
正解！
正解は： infectious
関連語彙
healthの関連語
Prescription
B2A 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
B2A physical or mental feature which is regarded as indicating a condition of disease, particularly such a feature that is apparent to the patient.
Diagnosis
B2The identification of the nature of an illness or other problem by examination of the symptoms and signs.
Physician
B2A person qualified to practice medicine, especially one who specializes in diagnosis and medical treatment rather than surgery.
Chronic
B2Persisting for a long time or constantly recurring. Usually applied to a medical condition that lasts for three months or more.
Vaccinate
B2To treat a person or animal with a vaccine to produce immunity against a particular infectious disease or pathogen.
Recover
B2To return to a normal state of health, mind, or strength after a period of illness, injury, or setback.
Treatment
B2Medical care given to a patient for an illness or injury. It includes the use of medicine, surgery, or therapy to improve a condition.
Consultation
B2A meeting with an expert or professional, such as a doctor or specialist, in order to seek advice or information.
under the weather
B1To feel slightly ill, unwell, or not as healthy as usual. It is typically used for minor ailments like a cold, headache, or general exhaustion rather than serious medical conditions.
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