Try these curated collections

Simple Set of Coronavirus Protection Related Vector Line Icons. 
Contains such Icons as Protective Measures, Coronavirus Symptoms, Incubation Period and more. Editable Stroke. 48x48 Pixel Perfect.
Vaccine icons, such as syringe, virus, corona, flu and more. Isolated vector illustrations.
 Flu and coronavirus icons set. Collection of linear simple web icons such as hygiene, disinfection, symptoms, treatment, virus, prevention and other. Editable vector stroke.
Simple Set of Medical Assistance Related Vector Line Icons. Contains such Icons as Wheelchair, Special Diet, Hospital Locator and more. Editable Stroke. 48x48 Pixel Perfect.
sick icon set
Simple Set of Coronavirus Safety Related Vector Line Icons. 
Contains such Icons as Washing Hands, Outbreak Map, Man and Woman Wearing Face Mask and more. Editable Stroke. 48x48 Pixel Perfect.
Medicine and health icon set
Kid with different diseases symptoms - fever, cough, snot, allergy. Set of  icons about child illness signs. Flat cartoon vector illustration isolated on white background.
Health Protection Icons - Blue Series
Line icons about coronavirus. Health care. Contains such icons as virus, fever, cough, hospital, stay at home, mask, social distancing and sanitizer. Editable stroke. Vector - 64 pixel perfect grid.
Outline icons about  Coronavirus prevention and symptoms. Health care.  Editable stroke. Vector - 256x256 pixel perfect.
Sneezing man line icon, vector pictogram of flu or cold symptom. Man covering cough with napkin illustration, sign for medical poster.
Coronavirus icon set for infographic or website - symptoms, transmission, prevention, treatment. Novel Coronavirus 2019-nCoV. 2019 and 2020 epidemic
Health icons
Sick ill Fever Flu Cold Sneeze Cough Vomit Disease Stick Figure Pictogram Icon
Personal Hygiene - Covering Mouth with tissue while sneezing - Icon as EPS 10 File
Coronavirus COVID-19 pandemic respiratory pneumonia disease related vector icons set line style. Included icons symptoms, transmission, prevention, treatment, virus, contagious, infection 2019-nCoV
Life Insurance Protection. Stick figures depict life insurance protection for premature death, critical illness, permanent disabilities, medical, hospital,  accident, traveling, and saving plans.
heart icon
Coronavirus Prevention Set Icons Thin Style Pictogram Minimalist
Medicine health care icons set vector illustration
Prevention and symptoms Coronavirus Covid 19 line icons set isolated on white. Perfect outline health medicine symbols pandemic banner. Quality design elements virus treatment with editable Stroke
Children Sick Sickness Ill Illness Disease Flu Problem Health Stick Figure Pictogram Icons
Cold, flu, sick people vector icons set
Mask protection virus icon set vector illustration. Contains such icon as clean, sneeze, mask, hand washing, hand sanitizer and more. Expanded Stroke
Body Pain and Injury line icon
Heatstroke line icon set. Included icons as heat, stroke, faint, hot, sick, summer and more.
Coronavirus (Covid-19 or 2019-ncov) Infographic showing Incubation, Prevention and Symptoms with icons and infected person. Coughing Character. China
Covid-19 or Coronavirus pandemic related simple thin line icon set. Contains Protective Measures and  2019nCOV Symptoms icons. Pixel perfect at 64x64 - Editable stroke
Set of outline icon related with coronavirus protection. Editable stroke. Outline icons suitable for web, infographics, interface and apps.
real line icon of a outline stick figure having a high fever and feeling hot with a thermometer showing high temperature and sweat on his head while feeling his head with his hand in black lines
Heart Attack. Symptoms, Treatment. Line icons set. Vector signs for web graphics.
Medical icons set, . Illustration eps 10
Illness symptoms vector icon set in thin line style
Headache, migraine - medical vector icons set
Vector graphic set. Editable outline stroke size. Icons in flat, contour, thin and linear design. Common cold. Symptoms, treatment, prevention. Simple isolated icons. Concept illustration for Web site
vector black medical icons set on gray
Medical icons
Symptoms Icons - Medical Illustration
sick and symptoms injuries silhouette icons flat line design vector set
Vaccination icons vector design black
Illness and injury flat icon set. Collection of high quality outline symbols of disease for web design, mobile app. Vector thin line icons or logo of headache, drowsiness, fever, sore throat, etc.
Immunity system line icon. Human immune system vector design. Virus and bacteria illustration
Stress and Depression Related Vector Icon Set. Thin Line Style. 48x48 Pixel Perfect
Medical drugs line icons. Healthcare, Prescription and Pill signs. Pharmacy drugs, medical nurse, recipe pill icons. Antibiotic capsule, syringe vaccination, medicine cure. Vector
Set vector line icons, sign and symbols in flat design diseases with elements for mobile concepts and web apps. Collection modern infographic logo and pictogram.
pills bottle icon. Health Care Vector illustration
Set of Coronavirus Protection. Prevention of New epidemic 2019-nCoV icon set for infographic or website. Safety, health, remedies and prevention of viral diseases. Isolation. Vector illustration
Vector set of medical icons. The coronavirus icons as hand wash, detergent, anti bacteria, mask and etc
Causes and Symptoms of Respiratory syncytial virus Infection , RSV Infection Treatment , Vector line icon
Allergy symptoms line color icon. Infectious diseases, colds, flu, cough. Sign for web page, mobile app, button, logo. Vector isolated button. Editable stroke.
Vector isolated medical icons set
Health Conditions & Diseases Icons - Sympa Series | Dots
Human illness and diseases symptoms signs set. Ill man avatars. Thin line art icons. Linear style illustrations isolated on white.
Coronavirus 2019-nCoV (Covid-19) Prevention icon set for Infographic
Aid family icon set with medical care, breath flu and ambulance. Set of illness related aid family icon line vector elements for web mobile logo UI design. Vector illustration of aid icon.
body pain and general illness symptoms in human icon set

Search for "illness icons" in these categories

sick icon set
Set of sick and ill people icons, pictograms. Vector illustration
Drugstore. Medicine bottle and pills. Medicament. Black and white icon. Vector illustration
Coronavirus test and search antibody icons set. Collection of linear simple web icons such as Antibody Search, Take Smear, Finger Blood, Buffer, Blood Syrup and others. Editable vector stroke.
 Health Care Icons - Medical Illustration
Psychology Psychiatric Mental Disorder Problem Psycho Illness Treatment
Medical Specialties Icons Set 2 - Sympa Series | Dots
Medical Vaccine icon. Medical Syringe symbol template for graphic and web design collection logo vector illustration
High body temperature related vector thin line icon. Man's head and high temperature thermometer. Isolated on white background. Editable stroke. Vector illustration.
Modern flat icons vector collection of medical theme. Isolated on white background.
Medical Icon - Color
Depression vector icon
A cute icon set with lots of health care themed icons
Bronchitis. Symptoms, Treatment. Line icons set. Vector signs for web graphics.
Influenza. Flu Symptoms, Treatment. Line icons set. Vector signs for web graphics.
Simple Set of Bacteria Related Vector Line Icons. Contains such Icons as Virus, Colony of Bacteria, Petri Dish and more.
Editable Stroke. 48x48 Pixel Perfect.
Set of help icons disability people nursing and disabled in wheelchair health care. Vector illustration
immune from flu germ icon, virus protection, hygiene shield, bacterial prevention, thin line web symbol on white background - editable stroke vector illustration eps10
Headache line icon set. Included the icons as Tension headaches, Cluster headaches, Migraine, brain symptom and more.
Illness, flu: woman with thermometer in mouth thin line icon. Modern vector illustration.
Man Common Diseases and Illness Stick Figure Pictogram Icon Cliparts
corona covid19 virus icons flat line design vector
Healthcare and Medicine icon set isolated on background. heartbeat rate, injection, healthy weight, medical records, health care, anti-aids, mobile app, dna, stomatology icons rps10
medical solid icons vector design
Neurosis thin line icon set: panic attack, headache, fatigue, insomnia, despair, phobia, mood instability, stuttering, psychalgia, dizziness. Modern vector illustration.
Set of hospital and medicine related vector illustration with simple line design suitable for icon or doodle
CORONAVIRUS set of icons on the theme of coronavirus, contains icons such as antiseptic, hand washing, mask, bacteria, sneezing, temperature Editable stroke, Vector illustration,
Elderly Care Nursing Old Folks Home Retirement Centre Pictogram
Insurance and protection linear icons set. Reimbursement for traveling expenses. High medicative costs. Customizable thin line contour symbols. Isolated vector outline illustrations. Editable stroke
Injured man icon on the white background.
Collection of ophthalmology related line icons. 256x256 Pixel Perfect. Editable stroke
High body temperature related thin line icon. Man's head and high temperature thermometer. Isolated on white background. Editable stroke. illustration.
Editable real line icon of a patient in a hospital bed on the intensive care with an IV and a heart monitor measuring his pulse in black modern lines on a clean white background
Health care concept vector illustration. Man and woman with symptoms sick in various pose. headache, chest pain, neck pain etc. vector illustration.
Medicine and Health Vector icons set Thin line outline
Hygiene thin line icon set 2, vector eps10.
Prevention and symptoms Coronavirus Covid 19 line icons set isolated on white. Perfect outline health medicine symbols pandemic banner. Quality design elements virus treatment with editable Stroke
Science icons set. Included icon as Handout, Organic tested, Chemistry pipette signs. Seo gear, Report statistics, Cogwheel blueprint symbols. Globe, Web system, Coronavirus. Settings. Vector
Simple Set of Optometry Related Vector Line Icons. 
Contains such Icons as Eye Exam, Laser Surgery, Eyeball, Glasses and more.
Editable Stroke. 48x48 Pixel Perfect.
Medical icon set. Collection of high quality outline web pictograms in modern flat style. Black Medical symbol for web design and mobile app on white background. Line logo EPS10
Pills and capsules icon, medical set on white background.Health Care Vector illustration
Sick and disease icon set. Included the icons as illness, symptoms, sickness, broken, diarrhea, pain and more.
Set of Hygiene icons. The icons as hand wash, soap, alcohol, detergent, anti bacteria and mask. Vector illustrations.
Outline icons about Coronavirus information. 2019-nCoV prevention and symptoms. Health care.  Editable stroke. Vector - 256x256 pixel perfect.
medical and hospital icon and web silhouette buttons
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