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  • male
  • 30 Years
  • 31/03/2021

How do infectious diseases spread?

Doctor 1

Answered by 1 Apollo Doctors

Infectious diseases can spread in a variety of ways: through the air, from direct or indirect contact with another person, soiled objects, skin or mucous membrane, saliva, urine, blood and body secretions, through sexual contact, and through contaminated food and water.

Dr. Shubham Suggests...

Consult a Infectious Disease specialist

Answered 04/07/2025

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  1. What Are Infectious Diseases?

    • Infectious diseases are caused by microorganisms like bacteria, viruses, fungi, or parasites.
  2. Common Ways Infectious Diseases Spread

    • Direct Contact: Through touching, kissing, or sexual contact.
    • Indirect Contact: Via contaminated surfaces or objects.
    • Droplet Spread: Coughs and sneezes release droplets carrying germs.
    • Airborne Transmission: Tiny particles linger in the air, infecting others.
    • Vector-borne Transmission: Insects like mosquitoes or ticks carry diseases.
    • Food and Water: Contamination leads to infections through consumption.
  3. Preventive Measures

    • Practice basic hygiene like handwashing.
    • Get vaccinations to protect against certain infections.
    • Maintain safe food and water habits.
    • Avoid close contact with sick individuals.
  4. When to Seek Medical Advice

    • Recognize symptoms that may require a doctor's evaluation.
    • Early diagnosis and treatment are crucial.
  5. Relevant Medical Specialties

    • Infectious Disease Specialists and General Practitioners manage these conditions.

Recommended next steps

Consult a Infectious Disease specialist or Consult a General Physician/ Internal Medicine Specialist

Answered 20/08/2025

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I've been really worried about the window period for HIV testing. I got tested after 140 days, and my result came back non-reactive. I'm wondering if that means Im definitely in the clear, or if there's a more accurate test I should consider for better peace of mind. Could you shed some light on the best test option for HIV detection?

The window period for HIV testing varies depending on the type of test used, ranging from 10 to 90 days. For a non-reactive result after 140 days, it's likely that the test has detected the absence of HIV antibodies and antigens, indicating a negative status. The best test for HIV detection is the 4th generation antibodyantigen test, which can detect 99% of samples within 45 days. However, if you're still concerned, consider a nucleic acid test (NAT), which can detect HIV within 10-33 days.

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I got bitten by a dog about three years ago and didn't get an anti-rabies vaccine then or since. I'm really worried about the risk of rabies now. The dog was a pet, but I dont know if it was vaccinated. It bit the fingers on my right hand, and I haven't had any symptoms so far. Can I still get a vaccine for that old bite?

No, u don't need to do anything now. Rabies if it were to acquired from dog it will get into a person within a day to a week or two. Nothing to worry for now.

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Doctor 1Doctor 2

Answered by 1 Apollo Doctors

I'm really worried about something that happened during a recent blood draw. At the private lab, I noticed the seal on the vacutainer needle was already torn before my blood was drawn, and now, a month later, I'm experiencing some unsettling symptoms like severe fatigue, headaches, dizziness, and red spots on my legs. My sore throat has continued, and there's a swollen lymph node near my elbow even after three months. I did an HIV test, the 4th-generation kind, and it came back negative after 8 weeks and 7 days. But I'm still concerned, especially since there was about a 7-minute gap between me and the previous patient. Can HIV be a concern here? Is it possible for vacutainer needles to be reused? I just want to understand if there's something more I should be looking out for.

Throat Pain After Vomiting _Causes_ 1. Stomach acid irritation 2. Inflammation of the throat lining _Remedy_ 1. _Stay hydrated_: Drink plenty of water to help soothe the throat. 2. _Gargle with salt water_: Mix 14 teaspoon of salt with 8 ounces of warm water to reduce inflammation. 3. _Throat lozenges_: Suck on lozenges or cough drops to help soothe the throat. 4. _Avoid irritants_: Stay away from spicy or acidic foods and drinks. 5. _Rest your voice_: Avoid talking or shouting to give your throat time to heal. _When to Seek Medical Attention_ 1. _Severe pain_: If pain persists or worsens. 2. _Difficulty swallowing_: If you experience trouble swallowing food or water. 3. _Fever_: If you have a fever over 101.5F (38.6C). 4. _Blood in vomit or saliva_: If you notice blood in your vomit or saliva.

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Doctor 1Doctor 2

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Disclaimer: Answers on Apollo 247 are not intended to replace your doctor advice. Always seek help of a professional doctor in case of an medical emergency or ailment.