The potency of 33 lots of Japanese encephalitis vaccine produced during the year period 2000-2001 at the Company for Vaccine and Biologicals No1 was evaluated by Shewhart chart. Data showed that no any potency of these lots falls outside the range of one standard deviation 1SD. Results showed the good stability of production procedure, the efficacy of produced vaccine of the manipulation and of the practical conditions
Japanese Encephalitis Vaccines ; Encephalitis

34 paired mother - infant blood samples collected from neonatal tetanus cases in National Institute of Pediatrics, Hanoi were examined for tetanus antibody. The results showed that 100% of blood samples were negative in both mothers and their infants.
Tetanus ; Serologic Tests

Background: In traditional medicine, liquid extract VK2 has good effects in the treatment of osteoarticular pain. This remedy has its origin from \u201cTam ty thang\u201d of the Eastern traditional medicine. Objective: To evaluate the analgesic and acute anti-inflammatory effects of liquid extract VK2. Subjects and method: The trial was performed on white mice (18-22 g body weight) and albino rats (120 +/- 20 g body weight). These animals were healthy. The prescribed amount of VK2 doses were 27.5 g and 55 g per kg body weight of the mice, 19.25 g and 38.5 g per kg body weight of the rats. Results: The liquid extract of VK2 doses had analgesic effect on acetic acide and themal-induced pain in the mice. The liquid extract of VK2 doses had also acute anti-inflammatory effect through inhibiting carrageenine-induced edema in the hind paw. Conclusion: VK2 had analgesic and anti-inflammatory effects on experimental animals.
VK2 ; analgesia ; anti-inflammatory

Objective: The purpose of this survey was to estimate the prevalence of viral load (VL) suppression and emergence of HIV drug resistance (HIVDR) among individuals receiving antiretroviral therapy (ART) for 36 months or longer in Viet Nam using a nationally representative sampling method. Methods: The survey was conducted between May and August 2014 using a two-stage cluster design. Sixteen ART clinics were selected using probability proportional to proxy size sampling, and patients receiving ART for at least 36 months were consecutively enrolled. Epidemiological information and blood specimens were collected for HIV-1 VL and HIVDR testing; HIVDR was defined by the Stanford University HIVDR algorithm. Results: Overall, 365 eligible individuals were recruited with a mean age of 38.2 years; 68.4% were men. The mean time on ART was 75.5 months (95% confidence interval [CI]: 69.0–81.9 months), and 93.7% of the patients were receiving non-nucleoside reverse transcriptase inhibitor-based regimens. Of the 365 individuals, 345 (94.7%, 95% CI: 64.1–99.4%) had VL below 1000 copies/mL and 19 (4.6%, 95% CI: 2.8-–7.5) had HIVDR mutations. Discussion Our nationally representative survey found a high level of VL suppression and a low prevalence of HIVDR among individuals who received ART for at least 36 months in Viet Nam. Continued surveillance for HIVDR is important for evaluating and improving HIV programs.