XDR Typhoid in Pakistan: Symptoms & Prevention Guide

What does it mean?

Typhoid is a bacterial infection (caused by Salmonella Typhi) that spreads through food and water contaminated with human waste. For decades, doctors treated it with common antibiotics. But in Pakistan, a new strain emerged that resists almost every antibiotic used against it — this is XDR typhoid, short for extensively drug-resistant typhoid. It is not "stronger" in symptoms, but it is far harder to treat, which is why it is dangerous.

Common causes

• 1XDR typhoid was born in Pakistan.
  The best-known XDR strain first emerged in Pakistan in 2016 and later appeared in international travelers (CDC on the REPJPP01 strain).
• 2"XDR" means resistant to 5 antibiotic classes:
  ampicillin, chloramphenicol, and trimethoprim-sulfamethoxazole (the old first-line trio), plus fluoroquinolones such as ciprofloxacin, plus third-generation cephalosporins such as ceftriaxone (CDC). That leaves doctors with very few options — mainly azithromycin for mild cases and carbapenems for severe cases.
• 3Resistance is extreme in parts of Pakistan — and the last oral option is now under threat.
  A 2019–2022 surveillance study in Khyber Pakhtunkhwa found S. Typhi isolates 100% resistant to ciprofloxacin, 95% to ampicillin, 92% to ceftriaxone and 90% to chloramphenicol. Azithromycin remains the main oral option, but resistance to it is rising: a pooled analysis found about 7% resistance (95% CI 3–16%) (Ullah et al., Open Forum Infectious Diseases) — so the treating doctor must check the sensitivity report for each patient before relying on it.
• 4The burden is large.
  Over 15,000 XDR typhoid cases have been reported in Pakistan, mainly in Sindh and Punjab (International Journal of Pathology, 2024). In Khyber Pakhtunkhwa alone, 10,070 typhoid cases including 51 XDR cases were recorded in 2024 (Dawn).
• 5Children suffer most.
  In 2017, 63% of typhoid cases and 70% of typhoid deaths in Pakistan were among children under 15 (WHO EMRO).
• 6Blood culture is the right test — Widal is not.
  CDC clinical guidance is explicit: serologic tests (Widal/Typhidot) have major limitations, do not yield a bacterial isolate for susceptibility testing, and should not be used to diagnose typhoid — get blood culture plus antimicrobial susceptibility testing (CDC MMWR summary). A Pakistani lab study echoed that scientists are calling for rapid, accurate diagnosis because wrong tests lead to wrong antibiotics (Dawn).
• 7Pakistan led the world in prevention.
  Pakistan became the first country in the world to introduce the typhoid conjugate vaccine (TCV) into its routine immunization program (November 2019, starting in Sindh), and TCV is now given at 9 months in Pakistan's EPI schedule (WHO EMRO).

When to worry

Prevention & practical tips

• ✓Demand blood culture, not Widal/Typhidot. If your doctor suspects typhoid (fever ≥3 days with abdominal pain, headache, vomiting/diarrhea/constipation), ask for a blood culture with sensitivity testing before strong antibiotics are chosen.
• ✓Never self-treat fever with antibiotics. Random antibiotic use is exactly how resistance was born. Finish every prescribed course; never share or stop early without your doctor.
• ✓Vaccinate your children. TCV at 9 months in the EPI schedule is free and effective — it is our strongest weapon against XDR typhoid.
• ✓Safe water, always. Boil drinking water (rolling boil), or use a trusted filter. Unsafe water is the root cause — Scientific American's report on the outbreak describes families infected through feces-contaminated water.
• ✓Handwashing + food safety. Wash hands with soap before eating and after the toilet; eat freshly cooked hot food; avoid raw salads and street ice from unknown sources during outbreaks.
• ✓Treat every fever seriously in monsoon season. Summer and monsoon (April–September) bring seasonal spikes in typhoid — NIH-directed KP guidelines specifically warn about this period.

FAQs

References

• CDC on the REPJPP01 strain: https://www.cdc.gov/typhoid-fever/php/rep-strain/
• Ullah et al., Open Forum Infectious Diseases: https://pubmed.ncbi.nlm.nih.gov/40177589/
• International Journal of Pathology, 2024: https://www.jpathology.com/index.php/OJS/article/download/936/512
• Dawn: https://www.dawn.com/news/1849049
• WHO EMRO: https://www.emro.who.int/pak/pakistan-news/pakistan-introduces-typhoid-conjugate-vaccine-tcv-into-routine-immunization-schedule-in-world-first.html
• CDC MMWR summary: https://stacks.cdc.gov/view/cdc/76011
• Scientific American's report on the outbreak: https://www.scientificamerican.com/article/pakistan-is-racing-to-combat-the-worlds-first-extensively-drug-resistant-typhoid-outbreak/?channel_id=1378-global-health