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* T & C
You will get a call within 12 Hrs from the time of Booking. *T&C – Free home sample collection is not available on specific tests. Pediatric home sample collection ( kids below 10 years age ) is available at specific cities only

Causes and Symptoms of an Infectious Disease

An infectious disease is caused by any of the pathogenic microorganisms like viruses, bacteria, fungi or parasites. Infectious diseases are capable of being spread directly or indirectly from one person to the other. Infectious diseases of animals are termed as ‘zoonotic diseases’; these can cause diseases when transmitted to human beings.  It is always advisable to have diagnostic tests done to identify an infectious disease.

Microorganisms like bacteria, fungi and viruses coexist in our bodies; we are exposed to them at all times. Though they are largely harmless, in certain conditions, these can cause diseases.  Certain infectious diseases like measles can be prevented by vaccines.  Following regular hygienic practices which include proper hand-washing can prevent most infectious diseases.

 Symptoms of an infectious disease

The symptoms of an infectious disease include –

  • Fever
  • Coughing
  • Sneezing
  • Diarrhea
  • Fatigue
  • Aching muscles

Causes of an infectious disease

The causes of an infectious disease can be broken down into microorganisms, direct contact, indirect contact, insect bites and food/water contamination


These microorganisms are known to give rise to infectious disease, and can be detected with appropriate diagnostic tests

  1. Bacteria – These uni-cell microorganisms can cause illnesses that include urinary tract infections and tuberculosis.
  2. Viruses – Viruses cause a range of diseases that can be as simple as common cold and as complicated as AIDS.
  3. Fungi – Most skin diseases are a result of fungal infections. Some of the examples include athlete’s foot, Tinea Versicolor, and ringworm.
  4. Parasites –One of the common examples is malaria, caused by a parasite transmitted through a mosquito bite.

Direct Contact

Person to person contact in the form of touch, kiss, cough, sneeze or exchange of body fluids during sexual contact can lead to the direct transfer of microorganisms like bacteria or viruses from one person to another. Being scratched by an infected animal can also lead to the spread of an infectious disease to a person. A pregnant mother can pass germs that cause infection disease to the unborn child.

Indirect Contact

Germs on the mobile phone, door knob, toilet seat etc. are an example of indirect contact and subsequent transmission of an infectious disease.  If you touch a mobile phone that is handled by someone who has a cold or flu; and then touch your eyes, mouth or nose without washing your hands, you can be susceptible to the infectious disease.

Food and Water Contamination

Unwashed food utensils or undercooked food can lead to contamination of food and water. For instance, the E.coli bacterium present in undercooked meat can lead to food poisoning, with symptoms like diarrhea and fever.

While most infectious diseases cause mild to moderate amount of complications, some of them can be serious like pneumonia, meningitis, and AIDS. Some infections are known to increase cancer risk, for instance, Human papillomavirus for cervical cancer and Hepatitis C or Hepatitis B for liver cancer.  Certain infectious diseases have a way of being dormant, only to resurface later. For instance, someone with chicken pox can develop shingles later in life.

When to visit a doctor

Go to the doctor if any of these things happen to you –

  • Diarrhea for more than 3 days in case of an adult, and more than 24 hours, in case of a child
  • A nagging headache that goes away and comes again
  • A cough for more than a week
  • Unexplained Fever
  • Rash or swelling on the skin
  • Bitten by an animal
  • Breathing problems
  • Vision problems
  • Fatigue

Regular health check goes a long way in helping your doctor arrive at an appropriate course of treatment, based on the results from pathology services.

Do not hesitate to go for diagnostic tests; these can be vastly helpful to the doctor in prescribing the right course of treatment in case you are affected by an infectious disease. Since there is a multitude of infectious diseases, an accurate diagnosis and health check goes a long way in expediting the treatment.

Book Your Test

* T & C

You will get a call within 12 Hrs from the time of Booking. *T&C – Free home sample collection is not available on specific tests. Pediatric home sample collection ( kids below 10 years age ) is available at specific cities only

Patient Testimonials

“Finding the best place for a diagnostic test is as important as consulting the best doctor. The Apollo name was what guided me to Apollo Diagnostics and I am indeed glad that I came here. From attending us on time to sample collection, everything flowed so smoothly. I was particularly impressed by the hygiene. It was definitely a value for money experience. Thanks a lot Apollo Diagnostics…keep up the good work!”

Mrs. Ferha Jabeen, Old Bowenpally, Secunderabad

“I Have heard a lot of good things about Apollo Diagnostics from our family physician as well as from relatives and friends. So then next time I needed a diagnostic centre, I visited Apollo Diagnostics and I was really glad I did. For one, I didn’t have to wait. The technician was extremely good, and the place was really clean. It was certainly a value for money experience. Great job Apollo Diagnostics!”

Ms. T. Jaya, Nakkalagutta, Hanmakonda

“I must say Apollo Diagnostics places a great value on time and patient comfort! I am a fan of their home collection service which is not only on time and technically sound, but the hygiene and cordiality of the visiting technician is also commendable. Hats off! I’ll continue to recommend Apollo Diagnostics to my family and friends.”

Mr. B. Pochaiah, Mallikarjuna Nagar Colony, Old Bowenpally, Secunderabad

“I have always had a great experience with Apollo Diagnostics. The calls are unfailingly answered. The scheduled appointment is kept to the minute. The phlebotomist is well-trained in both technique and putting the patient at ease. Apollo Diagnostics undoubtedly delivers value for money. They will always be my top option for all the diagnostic needs of my family.”

Mr. Prasanta Kumar Jena, JP Nagar, Bengaluru

“I came to know about Apollo Diagnostics from my relatives and friends. So, when I required a check up to be done, I thought about trying their service once. From sticking to the appointed time to accuracy of technique, it was really a great experience overall. Hygiene of the technician and the centre as well, was also quite admirable. I certainly felt it delivers value for money service. From now on, I’ll always visit Apollo Diagnostics for all my checkups.”

Mr. Venkateshwar Rao, Hanmakonda

“I was looking for a good diagnostic centre to get some checkups done. I was confused as there are so many of them all over the city. Some of my friends recommended Apollo Diagnostics as the best one. I’ll always remain thankful to them. The technician at Apollo Diagnostics was not only punctual but his competency was certainly praiseworthy. I never felt any discomfort as he was so confident and compassionate. Great job Apollo Diagnostics!”

Mr. T Radhakishan Rao, Hanmakonda

“My experience with Apollo Diagnostics has been consistently good. Securing the appointment was very easy and the schedule was maintained to the dot. The behaviour of the technician was pleasant and he was well–versed with his job. The place was noticeably clean and I did not face any discomfort during the process. The reports were delivered as promised and surprisingly, the service was pretty affordable. I would recommend Apollo Diagnostics to my circle without any hesitation!”

Mr. Arif Ameer, JP Nagar, Bengaluru

“Apollo Diagnostics came highly recommended by my friends. I was particularly impressed by their cordiality, time management and process competence. Another must mention is the hygiene factor that is impeccable. Given the quality delivered, this is certainly a value for money experience. Thanks a lot Apollo Diagnostics…keep up the great work!”

Ms. A.Madhavi, Warangal

“Our family physician strictly instructed me to get the checkup done at Apollo Diagnostics. I am glad I respected his opinion. I was attended to as soon as I went in. The technician was a true expert at his job and made it a painless experience for me. I also observed that the centre was spotless and all the staff members were particular about maintaining hygiene. Apollo Diagnostics certainly delivers value for money. I’ll always recommend Apollo Diagnostics to my family and friends.”

Ms. Vimala, Hanmakonda

“My Apollo Diagnostics experience has thus far been truly amazing. Besides unfailingly maintaining the schedule – be it sample taking or report delivery, their sense of cleanliness is also tops. The technicians are well-trained and do their job with diligence and in a friendly manner that puts patients at ease at once. Apollo Diagnostics is setting a very high standard indeed! Now that’s what I call a fine job!”

Ms. G. Jyothi, Warangal

“My mother needed a blood test, but was unable to walk due to pain in her leg. A Phlebotomist from Apollo Diagnostics came home and collected the sample. I was informed, via SMS, that the report could be collected from any of the 3 centres in Dibrugarh, downloaded online or even delivered home for a nominal fee. Although the rates were reasonable, my mother also received a senior citizens discount too! This saved my time, money & energy. My aachhe din really seemed to have arrived! Thank you Apollo Diagnostics and hats off for displaying true professionalism.”

Mr. Alokk Kar Dowerah, Dibrugarh

“Whenever I need to have a blood sample collected from home, I ask for Vasu. He is punctual, courteous and so skilled I hardly feel any pain when he draws the sample. Plus, I truly appreciate how quickly the reports are delivered. Thanks Apollo!”

Mr. Sukumar, Film director, Sriram Nagar, Hyderabad