Small Pox

Overview of Small Pox

Small Pox Meaning in Urdu

چیچک ایک جِلدی بیماری ہے جو کہ وائرل انفیکشن کی وجہ سے لاحق ہوتی ہے۔ اگر یہ بیماری شدت اختیار کر جائے تو اس کی وجہ سے موت بھی واقع ہو سکتی ہے۔ چیچک کو ایک متعدی بیماری ہے جو کہ ایک شخص سے دوسرے فرد میں منتقل ہو سکتی ہے۔ چیچک کی وجہ سے جِلد بری طرح متاثر ہوتی ہے۔ اس کی بنیادی علامات میں بخار، پٹھوں کا درد، سر درد، شدید تھکاوٹ، قے، اور شدید کمر درد شامل ہے۔ چیچک کی وجہ بننے والا وائرس جب جسم میں منتقل ہوتا ہے تو بارہ سے چودہ دنوں بعد اس بیماری کی علامات ظاہر ہوتی ہیں۔

Smallpox (چیچک/Chichak) is an infectious disease caused by a deadly virus. It is a contagious disease for which there is no cure. Smallpox is also called Variola. In 1980, smallpox was completely eradicated thanks to a global immunization campaign.

Smallpox is an ancient disease, first discovered in Egypt. It is a devastating disease and its worldwide epidemics have filled the books of history.

Still, there is no cure for smallpox. It can be prevented only by vaccination. The first smallpox vaccine was developed in 1758. However, the side effects of this vaccine outweigh its benefits. 

Occurrence of Smallpox

Currently, there is no evidence of naturally occurring smallpox transmission anywhere in the world. Although a worldwide immunization program eradicated smallpox disease decades ago, small quantities of smallpox virus officially still exist in two research laboratories in Atlanta, Georgia, and Russia.

Signs and Symptoms of Small Pox

The early symptoms of smallpox typically begin within 10-14 days after infection. Its incubation period is 7-17 days during which a person is asymptomatic and healthy. 

After the incubation period, suddenly a set of flu-like symptoms appear. Some of the common symptoms of smallpox are:

  • Fever
  • Headache
  • Overall discomfort
  • Severe fatigue
  • Vomiting, possibly
  • Severe back pain

After some time, flat and red spots develop on the face, hands, and forearms, which then spreads to the trunk region. Within 1-2 days, these lesions filled with pus and were called small blisters. Further, the blisters turn into scabs in the next 8-9 days. These scabs then suddenly fall off leaving deep marks on the skin.  

Lesions can also develop in the mucosal walls of the nose and mouth. These lesions, later on, turned into sores.

Types of Small Pox

Causes of Small Pox

Variola virus is responsible for smallpox occurrence. The virus can be transmitted by following routes:

  • Direct Contact: Variola virus can transmit from one person to another by direct contact. Direct transmission requires long-term contact. The virus is spread in the air by droplets released during coughing, sneezing or talking. 
  • Indirect Spread: In some rare cases, airborne viruses can spread through other ways such as the ventilation system in a building. Through this people on other floors or rooms are also infected.
                                                                                                                                                                                                                                                                                                                                                        • Contaminated Items: Smallpox can also transmit from infected clothes and beds through contact. However, the risk of infection by contaminated items is low.
  • Bioterrorist Weapon: As smallpox spreads quickly and widely, these days it is used as a bioterrorist weapon. 

Risk Factors of Small Pox

Most of the time smallpox is recovered on its own without any treatment. However, in some rare cases, an infection can lead to other health-related complications. These complications commonly occur in people with weakened immune systems and pregnant women. After recovery, usually, severe scars are left on the face, arms, and legs. In some rare cases, smallpox causes vision loss. 



Smallpox can be prevented by:

  • Isolating the infected person from others to prevent the spread of infection.
  • Vaccination of the person who comes in contact with the infected person, sample, or clothing. It must be given within 4 days of virus exposure.


There are two vaccines for smallpox such as:

ACAM2000: This vaccine uses the live virus. But it can sometimes cause serious complications such as brain damage or heart problems. Therefore, its use is not recommended for everyone.

Jynneos: Also known as the Ankara vaccine (Jynneos), it is prepared from the modified vaccinia virus. This vaccine is safe to use even for those: 

  • Who can’t be vaccinated by ACAM2000, 
  • Have weakened immune systems or 
  • Have skin disorders




As smallpox has been eradicated from the world, if a new outbreak occurs the doctor may not be able to figure out the early stages of infection. Its testing can be done by the Centers for Disease Control and Prevention. In this test, a tissue sample may be taken from the lesions of the infected person. 

Treatment of Small Pox | When to Consult a Doctor

There is no particular medication for the treatment of smallpox. During infection, only symptoms can be relieved. If the infection spreads to the lungs, antibiotics will be prescribed by the doctor.